System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "ynjxy", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap y and n -> ny; swap j and x -> xj; y has no partner so it stays. That gives "nyxjy". Then, Split into a front half "ny" and a back half "xjy", then interleave them character by character (front1, back1, front2, back2, ...), giving "nxyjy".
result = "nxyjy"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "llggznw", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap l and l -> ll; swap g and g -> gg; swap z and n -> nz; w has no partner so it stays. That gives "llggnzw". Then, Split into a front half "llg" and a back half "gnzw", then interleave them character by character (front1, back1, front2, back2, ...), giving "lglngzw".
result = "lglngzw"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "mjwcj", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap m and j -> jm; swap w and c -> cw; j has no partner so it stays. That gives "jmcwj". Then, Split into a front half "jm" and a back half "cwj", then interleave them character by character (front1, back1, front2, back2, ...), giving "jcmwj".
result = "jcmwj"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "yguosbj", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap y and g -> gy; swap u and o -> ou; swap s and b -> bs; j has no partner so it stays. That gives "gyoubsj". Then, Split into a front half "gyo" and a back half "ubsj", then interleave them character by character (front1, back1, front2, back2, ...), giving "guybosj".
result = "guybosj"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "rhobrmyx", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap r and h -> hr; swap o and b -> bo; swap r and m -> mr; swap y and x -> xy. That gives "hrbomrxy". Then, Split into a front half "hrbo" and a back half "mrxy", then interleave them character by character (front1, back1, front2, back2, ...), giving "hmrrbxoy".
result = "hmrrbxoy"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "sdqkc", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap s and d -> ds; swap q and k -> kq; c has no partner so it stays. That gives "dskqc". Then, Split into a front half "ds" and a back half "kqc", then interleave them character by character (front1, back1, front2, back2, ...), giving "dksqc".
result = "dksqc"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "gmyto", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap g and m -> mg; swap y and t -> ty; o has no partner so it stays. That gives "mgtyo". Then, Split into a front half "mg" and a back half "tyo", then interleave them character by character (front1, back1, front2, back2, ...), giving "mtgyo".
result = "mtgyo"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "dtvoday", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap d and t -> td; swap v and o -> ov; swap d and a -> ad; y has no partner so it stays. That gives "tdovady". Then, Split into a front half "tdo" and a back half "vady", then interleave them character by character (front1, back1, front2, back2, ...), giving "tvdaody".
result = "tvdaody"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "cltlixyd", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap c and l -> lc; swap t and l -> lt; swap i and x -> xi; swap y and d -> dy. That gives "lcltxidy". Then, Split into a front half "lclt" and a back half "xidy", then interleave them character by character (front1, back1, front2, back2, ...), giving "lxcildty".
result = "lxcildty"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "ichynge", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap i and c -> ci; swap h and y -> yh; swap n and g -> gn; e has no partner so it stays. That gives "ciyhgne". Then, Split into a front half "ciy" and a back half "hgne", then interleave them character by character (front1, back1, front2, back2, ...), giving "chigyne".
result = "chigyne"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "bbjxusa", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap b and b -> bb; swap j and x -> xj; swap u and s -> su; a has no partner so it stays. That gives "bbxjsua". Then, Split into a front half "bbx" and a back half "jsua", then interleave them character by character (front1, back1, front2, back2, ...), giving "bjbsxua".
result = "bjbsxua"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "afrdf", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap a and f -> fa; swap r and d -> dr; f has no partner so it stays. That gives "fadrf". Then, Split into a front half "fa" and a back half "drf", then interleave them character by character (front1, back1, front2, back2, ...), giving "fdarf".
result = "fdarf"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "meldrqe", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap m and e -> em; swap l and d -> dl; swap r and q -> qr; e has no partner so it stays. That gives "emdlqre". Then, Split into a front half "emd" and a back half "lqre", then interleave them character by character (front1, back1, front2, back2, ...), giving "elmqdre".
result = "elmqdre"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "acbyt", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap a and c -> ca; swap b and y -> yb; t has no partner so it stays. That gives "caybt". Then, Split into a front half "ca" and a back half "ybt", then interleave them character by character (front1, back1, front2, back2, ...), giving "cyabt".
result = "cyabt"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "baomaola", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap b and a -> ab; swap o and m -> mo; swap a and o -> oa; swap l and a -> al. That gives "abmooaal". Then, Split into a front half "abmo" and a back half "oaal", then interleave them character by character (front1, back1, front2, back2, ...), giving "aobamaol".
result = "aobamaol"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "gzddrvg", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap g and z -> zg; swap d and d -> dd; swap r and v -> vr; g has no partner so it stays. That gives "zgddvrg". Then, Split into a front half "zgd" and a back half "dvrg", then interleave them character by character (front1, back1, front2, back2, ...), giving "zdgvdrg".
result = "zdgvdrg"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "smzic", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap s and m -> ms; swap z and i -> iz; c has no partner so it stays. That gives "msizc". Then, Split into a front half "ms" and a back half "izc", then interleave them character by character (front1, back1, front2, back2, ...), giving "miszc".
result = "miszc"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "syatj", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap s and y -> ys; swap a and t -> ta; j has no partner so it stays. That gives "ystaj". Then, Split into a front half "ys" and a back half "taj", then interleave them character by character (front1, back1, front2, back2, ...), giving "ytsaj".
result = "ytsaj"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "icslaatx", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap i and c -> ci; swap s and l -> ls; swap a and a -> aa; swap t and x -> xt. That gives "cilsaaxt". Then, Split into a front half "cils" and a back half "aaxt", then interleave them character by character (front1, back1, front2, back2, ...), giving "caialxst".
result = "caialxst"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "btggevtu", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap b and t -> tb; swap g and g -> gg; swap e and v -> ve; swap t and u -> ut. That gives "tbggveut". Then, Split into a front half "tbgg" and a back half "veut", then interleave them character by character (front1, back1, front2, back2, ...), giving "tvbegugt".
result = "tvbegugt"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "hnoiqvoy", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap h and n -> nh; swap o and i -> io; swap q and v -> vq; swap o and y -> yo. That gives "nhiovqyo". Then, Split into a front half "nhio" and a back half "vqyo", then interleave them character by character (front1, back1, front2, back2, ...), giving "nvhqiyoo".
result = "nvhqiyoo"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "jojqwaf", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap j and o -> oj; swap j and q -> qj; swap w and a -> aw; f has no partner so it stays. That gives "ojqjawf". Then, Split into a front half "ojq" and a back half "jawf", then interleave them character by character (front1, back1, front2, back2, ...), giving "ojjaqwf".
result = "ojjaqwf"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "qkovi", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap q and k -> kq; swap o and v -> vo; i has no partner so it stays. That gives "kqvoi". Then, Split into a front half "kq" and a back half "voi", then interleave them character by character (front1, back1, front2, back2, ...), giving "kvqoi".
result = "kvqoi"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "iurvemqd", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap i and u -> ui; swap r and v -> vr; swap e and m -> me; swap q and d -> dq. That gives "uivrmedq". Then, Split into a front half "uivr" and a back half "medq", then interleave them character by character (front1, back1, front2, back2, ...), giving "umievdrq".
result = "umievdrq"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "pownf", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap p and o -> op; swap w and n -> nw; f has no partner so it stays. That gives "opnwf". Then, Split into a front half "op" and a back half "nwf", then interleave them character by character (front1, back1, front2, back2, ...), giving "onpwf".
result = "onpwf"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "qhmfcix", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap q and h -> hq; swap m and f -> fm; swap c and i -> ic; x has no partner so it stays. That gives "hqfmicx". Then, Split into a front half "hqf" and a back half "micx", then interleave them character by character (front1, back1, front2, back2, ...), giving "hmqifcx".
result = "hmqifcx"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "lfxpobyj", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap l and f -> fl; swap x and p -> px; swap o and b -> bo; swap y and j -> jy. That gives "flpxbojy". Then, Split into a front half "flpx" and a back half "bojy", then interleave them character by character (front1, back1, front2, back2, ...), giving "fblopjxy".
result = "fblopjxy"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "lsfploob", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap l and s -> sl; swap f and p -> pf; swap l and o -> ol; swap o and b -> bo. That gives "slpfolbo". Then, Split into a front half "slpf" and a back half "olbo", then interleave them character by character (front1, back1, front2, back2, ...), giving "sollpbfo".
result = "sollpbfo"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "vzaji", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap v and z -> zv; swap a and j -> ja; i has no partner so it stays. That gives "zvjai". Then, Split into a front half "zv" and a back half "jai", then interleave them character by character (front1, back1, front2, back2, ...), giving "zjvai".
result = "zjvai"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "khpvdzqx", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap k and h -> hk; swap p and v -> vp; swap d and z -> zd; swap q and x -> xq. That gives "hkvpzdxq". Then, Split into a front half "hkvp" and a back half "zdxq", then interleave them character by character (front1, back1, front2, back2, ...), giving "hzkdvxpq".
result = "hzkdvxpq"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "luubrole", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap l and u -> ul; swap u and b -> bu; swap r and o -> or; swap l and e -> el. That gives "ulbuorel". Then, Split into a front half "ulbu" and a back half "orel", then interleave them character by character (front1, back1, front2, back2, ...), giving "uolrbeul".
result = "uolrbeul"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "ujwgyycq", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap u and j -> ju; swap w and g -> gw; swap y and y -> yy; swap c and q -> qc. That gives "jugwyyqc". Then, Split into a front half "jugw" and a back half "yyqc", then interleave them character by character (front1, back1, front2, back2, ...), giving "jyuygqwc".
result = "jyuygqwc"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "hbppekae", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap h and b -> bh; swap p and p -> pp; swap e and k -> ke; swap a and e -> ea. That gives "bhppkeea". Then, Split into a front half "bhpp" and a back half "keea", then interleave them character by character (front1, back1, front2, back2, ...), giving "bkhepepa".
result = "bkhepepa"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "cjdovjbk", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap c and j -> jc; swap d and o -> od; swap v and j -> jv; swap b and k -> kb. That gives "jcodjvkb". Then, Split into a front half "jcod" and a back half "jvkb", then interleave them character by character (front1, back1, front2, back2, ...), giving "jjcvokdb".
result = "jjcvokdb"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "sjggwkd", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap s and j -> js; swap g and g -> gg; swap w and k -> kw; d has no partner so it stays. That gives "jsggkwd". Then, Split into a front half "jsg" and a back half "gkwd", then interleave them character by character (front1, back1, front2, back2, ...), giving "jgskgwd".
result = "jgskgwd"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "hawhrha", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap h and a -> ah; swap w and h -> hw; swap r and h -> hr; a has no partner so it stays. That gives "ahhwhra". Then, Split into a front half "ahh" and a back half "whra", then interleave them character by character (front1, back1, front2, back2, ...), giving "awhhhra".
result = "awhhhra"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "tqnvistg", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap t and q -> qt; swap n and v -> vn; swap i and s -> si; swap t and g -> gt. That gives "qtvnsigt". Then, Split into a front half "qtvn" and a back half "sigt", then interleave them character by character (front1, back1, front2, back2, ...), giving "qstivgnt".
result = "qstivgnt"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "tglsk", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap t and g -> gt; swap l and s -> sl; k has no partner so it stays. That gives "gtslk". Then, Split into a front half "gt" and a back half "slk", then interleave them character by character (front1, back1, front2, back2, ...), giving "gstlk".
result = "gstlk"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "oethoqfx", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap o and e -> eo; swap t and h -> ht; swap o and q -> qo; swap f and x -> xf. That gives "eohtqoxf". Then, Split into a front half "eoht" and a back half "qoxf", then interleave them character by character (front1, back1, front2, back2, ...), giving "eqoohxtf".
result = "eqoohxtf"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "jzyvz", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap j and z -> zj; swap y and v -> vy; z has no partner so it stays. That gives "zjvyz". Then, Split into a front half "zj" and a back half "vyz", then interleave them character by character (front1, back1, front2, back2, ...), giving "zvjyz".
result = "zvjyz"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "fxxtgsy", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap f and x -> xf; swap x and t -> tx; swap g and s -> sg; y has no partner so it stays. That gives "xftxsgy". Then, Split into a front half "xft" and a back half "xsgy", then interleave them character by character (front1, back1, front2, back2, ...), giving "xxfstgy".
result = "xxfstgy"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "rnzwk", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap r and n -> nr; swap z and w -> wz; k has no partner so it stays. That gives "nrwzk". Then, Split into a front half "nr" and a back half "wzk", then interleave them character by character (front1, back1, front2, back2, ...), giving "nwrzk".
result = "nwrzk"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "zkrslnl", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap z and k -> kz; swap r and s -> sr; swap l and n -> nl; l has no partner so it stays. That gives "kzsrnll". Then, Split into a front half "kzs" and a back half "rnll", then interleave them character by character (front1, back1, front2, back2, ...), giving "krznsll".
result = "krznsll"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "uktzfoco", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap u and k -> ku; swap t and z -> zt; swap f and o -> of; swap c and o -> oc. That gives "kuztofoc". Then, Split into a front half "kuzt" and a back half "ofoc", then interleave them character by character (front1, back1, front2, back2, ...), giving "koufzotc".
result = "koufzotc"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "yvcjyge", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap y and v -> vy; swap c and j -> jc; swap y and g -> gy; e has no partner so it stays. That gives "vyjcgye". Then, Split into a front half "vyj" and a back half "cgye", then interleave them character by character (front1, back1, front2, back2, ...), giving "vcygjye".
result = "vcygjye"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "rdixgcob", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap r and d -> dr; swap i and x -> xi; swap g and c -> cg; swap o and b -> bo. That gives "drxicgbo". Then, Split into a front half "drxi" and a back half "cgbo", then interleave them character by character (front1, back1, front2, back2, ...), giving "dcrgxbio".
result = "dcrgxbio"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "xhajr", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap x and h -> hx; swap a and j -> ja; r has no partner so it stays. That gives "hxjar". Then, Split into a front half "hx" and a back half "jar", then interleave them character by character (front1, back1, front2, back2, ...), giving "hjxar".
result = "hjxar"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "uteapsb", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap u and t -> tu; swap e and a -> ae; swap p and s -> sp; b has no partner so it stays. That gives "tuaespb". Then, Split into a front half "tua" and a back half "espb", then interleave them character by character (front1, back1, front2, back2, ...), giving "teusapb".
result = "teusapb"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "djmtnias", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap d and j -> jd; swap m and t -> tm; swap n and i -> in; swap a and s -> sa. That gives "jdtminsa". Then, Split into a front half "jdtm" and a back half "insa", then interleave them character by character (front1, back1, front2, back2, ...), giving "jidntsma".
result = "jidntsma"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "elgwzjcz", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap e and l -> le; swap g and w -> wg; swap z and j -> jz; swap c and z -> zc. That gives "lewgjzzc". Then, Split into a front half "lewg" and a back half "jzzc", then interleave them character by character (front1, back1, front2, back2, ...), giving "ljezwzgc".
result = "ljezwzgc"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "dztznrr", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap d and z -> zd; swap t and z -> zt; swap n and r -> rn; r has no partner so it stays. That gives "zdztrnr". Then, Split into a front half "zdz" and a back half "trnr", then interleave them character by character (front1, back1, front2, back2, ...), giving "ztdrznr".
result = "ztdrznr"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "bieoksno", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap b and i -> ib; swap e and o -> oe; swap k and s -> sk; swap n and o -> on. That gives "iboeskon". Then, Split into a front half "iboe" and a back half "skon", then interleave them character by character (front1, back1, front2, back2, ...), giving "isbkooen".
result = "isbkooen"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "mnlzvkvn", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap m and n -> nm; swap l and z -> zl; swap v and k -> kv; swap v and n -> nv. That gives "nmzlkvnv". Then, Split into a front half "nmzl" and a back half "kvnv", then interleave them character by character (front1, back1, front2, back2, ...), giving "nkmvznlv".
result = "nkmvznlv"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "fjyswuh", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap f and j -> jf; swap y and s -> sy; swap w and u -> uw; h has no partner so it stays. That gives "jfsyuwh". Then, Split into a front half "jfs" and a back half "yuwh", then interleave them character by character (front1, back1, front2, back2, ...), giving "jyfuswh".
result = "jyfuswh"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "uggjqli", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap u and g -> gu; swap g and j -> jg; swap q and l -> lq; i has no partner so it stays. That gives "gujglqi". Then, Split into a front half "guj" and a back half "glqi", then interleave them character by character (front1, back1, front2, back2, ...), giving "gguljqi".
result = "gguljqi"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "xpwcmhj", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap x and p -> px; swap w and c -> cw; swap m and h -> hm; j has no partner so it stays. That gives "pxcwhmj". Then, Split into a front half "pxc" and a back half "whmj", then interleave them character by character (front1, back1, front2, back2, ...), giving "pwxhcmj".
result = "pwxhcmj"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "xxwtoqq", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap x and x -> xx; swap w and t -> tw; swap o and q -> qo; q has no partner so it stays. That gives "xxtwqoq". Then, Split into a front half "xxt" and a back half "wqoq", then interleave them character by character (front1, back1, front2, back2, ...), giving "xwxqtoq".
result = "xwxqtoq"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "pilxp", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap p and i -> ip; swap l and x -> xl; p has no partner so it stays. That gives "ipxlp". Then, Split into a front half "ip" and a back half "xlp", then interleave them character by character (front1, back1, front2, back2, ...), giving "ixplp".
result = "ixplp"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "qjoms", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap q and j -> jq; swap o and m -> mo; s has no partner so it stays. That gives "jqmos". Then, Split into a front half "jq" and a back half "mos", then interleave them character by character (front1, back1, front2, back2, ...), giving "jmqos".
result = "jmqos"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "cvqfrod", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap c and v -> vc; swap q and f -> fq; swap r and o -> or; d has no partner so it stays. That gives "vcfqord". Then, Split into a front half "vcf" and a back half "qord", then interleave them character by character (front1, back1, front2, back2, ...), giving "vqcofrd".
result = "vqcofrd"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "zlgto", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap z and l -> lz; swap g and t -> tg; o has no partner so it stays. That gives "lztgo". Then, Split into a front half "lz" and a back half "tgo", then interleave them character by character (front1, back1, front2, back2, ...), giving "ltzgo".
result = "ltzgo"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "yscqa", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap y and s -> sy; swap c and q -> qc; a has no partner so it stays. That gives "syqca". Then, Split into a front half "sy" and a back half "qca", then interleave them character by character (front1, back1, front2, back2, ...), giving "sqyca".
result = "sqyca"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "vfepn", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap v and f -> fv; swap e and p -> pe; n has no partner so it stays. That gives "fvpen". Then, Split into a front half "fv" and a back half "pen", then interleave them character by character (front1, back1, front2, back2, ...), giving "fpven".
result = "fpven"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "iadcbcb", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap i and a -> ai; swap d and c -> cd; swap b and c -> cb; b has no partner so it stays. That gives "aicdcbb". Then, Split into a front half "aic" and a back half "dcbb", then interleave them character by character (front1, back1, front2, back2, ...), giving "adiccbb".
result = "adiccbb"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "uxfusyd", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap u and x -> xu; swap f and u -> uf; swap s and y -> ys; d has no partner so it stays. That gives "xuufysd". Then, Split into a front half "xuu" and a back half "fysd", then interleave them character by character (front1, back1, front2, back2, ...), giving "xfuyusd".
result = "xfuyusd"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "euovejc", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap e and u -> ue; swap o and v -> vo; swap e and j -> je; c has no partner so it stays. That gives "uevojec". Then, Split into a front half "uev" and a back half "ojec", then interleave them character by character (front1, back1, front2, back2, ...), giving "uoejvec".
result = "uoejvec"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "bsmij", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap b and s -> sb; swap m and i -> im; j has no partner so it stays. That gives "sbimj". Then, Split into a front half "sb" and a back half "imj", then interleave them character by character (front1, back1, front2, back2, ...), giving "sibmj".
result = "sibmj"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "jnnqyoc", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap j and n -> nj; swap n and q -> qn; swap y and o -> oy; c has no partner so it stays. That gives "njqnoyc". Then, Split into a front half "njq" and a back half "noyc", then interleave them character by character (front1, back1, front2, back2, ...), giving "nnjoqyc".
result = "nnjoqyc"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "amftypw", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap a and m -> ma; swap f and t -> tf; swap y and p -> py; w has no partner so it stays. That gives "matfpyw". Then, Split into a front half "mat" and a back half "fpyw", then interleave them character by character (front1, back1, front2, back2, ...), giving "mfaptyw".
result = "mfaptyw"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "amuoquc", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap a and m -> ma; swap u and o -> ou; swap q and u -> uq; c has no partner so it stays. That gives "maouuqc". Then, Split into a front half "mao" and a back half "uuqc", then interleave them character by character (front1, back1, front2, back2, ...), giving "muauoqc".
result = "muauoqc"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "zbfbq", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap z and b -> bz; swap f and b -> bf; q has no partner so it stays. That gives "bzbfq". Then, Split into a front half "bz" and a back half "bfq", then interleave them character by character (front1, back1, front2, back2, ...), giving "bbzfq".
result = "bbzfq"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "xqahcoa", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap x and q -> qx; swap a and h -> ha; swap c and o -> oc; a has no partner so it stays. That gives "qxhaoca". Then, Split into a front half "qxh" and a back half "aoca", then interleave them character by character (front1, back1, front2, back2, ...), giving "qaxohca".
result = "qaxohca"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "ihazupn", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap i and h -> hi; swap a and z -> za; swap u and p -> pu; n has no partner so it stays. That gives "hizapun". Then, Split into a front half "hiz" and a back half "apun", then interleave them character by character (front1, back1, front2, back2, ...), giving "haipzun".
result = "haipzun"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "fseclprn", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap f and s -> sf; swap e and c -> ce; swap l and p -> pl; swap r and n -> nr. That gives "sfceplnr". Then, Split into a front half "sfce" and a back half "plnr", then interleave them character by character (front1, back1, front2, back2, ...), giving "spflcner".
result = "spflcner"


System: You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[System] You are a precise operations engine. Apply the named operations exactly, in order, and end with result = "<answer>".

[User]
Apply swap_pairs to "ldwbcnu", then apply interleave_halves to the result.
Show your working, then end with:
result = "<...>"

Response:
Swap characters in adjacent pairs (1st with 2nd, 3rd with 4th, ...): swap l and d -> dl; swap w and b -> bw; swap c and n -> nc; u has no partner so it stays. That gives "dlbwncu". Then, Split into a front half "dlb" and a back half "wncu", then interleave them character by character (front1, back1, front2, back2, ...), giving "dwlnbcu".
result = "dwlnbcu"