20 424
FDGC
DECHBAE
FGCCC
AGHACBA
EGCBH
HFH
CEBH
ACH
EBE
CCF
DFH
AECHEGB
BAG
GDAD
FDEBA
FHAHDAB
CBCFF
CAEBA
CBBED
EFEE
GCEDAA
GBAC
HBBFBG
CBGBAC
AEC
GCHA
BFDBFH
DFCCCEB
DBCDCD
AFF
CDDCD
EGFABGH
BAHHFF
EHCEAC
CDDC
HAAGHAC
BEG
AGE
FHGHFHH
ABEE
ABEEACG
HEGDF
CCF
FAA
FGCAHA
EGBBF
GED
ACED
HEB
AHGEE
GGAC
BBEDHHD
ECCF
AAH
GCA
DABGFCH
CDCHC
ACCE
EAGEG
GFHE
HHFBF
DAEACF
FBDEHH
ADDCED
CEDDGEE
CEDD
FACAHEH
ABFBDBE
FHB
HHB
AEBADCD
GGCFEA
EAEHCA
BHDBABA
GHACEB
HHDAC
HHFFCDC
HAHCBF
BFHB
FHECBG
CBBE
FBC
BFHH
CEBHDB
HHHBEE
CDGFBGE
HAEA
CGFBA
CEB
CHHHBE
HCCGF
HDC
GHEH
HEGB
HFHB
HEE
EHHCHH
HDCEEA
ACCFDGA
AHHF
BCBBED
ABFBD
EGFA
GEEAD
HFFAA
AGE
FCE
FHEF
HEF
FAEHB
AEHBD
BACBFH
ABDDEC
CDDBDAB
HEHCEA
CCD
DFBHAE
ABACBFH
BDABGF
ACB
BACHCG
DHBD
GFHABAE
FCBBE
BEEF
HFFCDCH
HCBFHFC
DAAB
BDAEAC
HGEE
FGCAHAH
GBH
DHH
BDCA
AEAGEGH
GCDBCDC
ADF
GBEGE
CGH
DAFHB
EAFCF
BAF
BAFH
CDBDHD
AGBAHH
HECBGBA
CBAGE
FHEC
GCBFHDA
EACCEBH
FBDDBCB
CBFH
CHFG
CGFCFEE
CFD
AEAGEGH
HEFGCC
GCD
EAF
DDECBA
BDD
CEDCF
GHFHFH
FCFEEB
AAAH
EEA
DEC
HEEH
DBCBDEC
DAABBCD
CAEHBC
CGBGDA
AACBEAH
DHD
GBGDAD
CHAH
EBACHC
HFAG
ECDGFBG
EBBHAH
EACC
AHE
CFGC
AGBAHHF
AFFCGB
AHGEEAD
BAF
BBFB
BEGEDAF
HFCGDB
CHFGHE
BBF
FHFCGDB
HACE
AFBDDB
GDBAGE
EDCFDGC
HECBG
HDDFBH
HHA
ACGHFB
HBDH
FCGGBDA
AGEEHCE
CCCDGGA
DAACHEA
GEF
HHF
EGDFBCD
GCFGCA
HBDAAAC
BAHHFFC
EGCB
FHDDF
GABEEAC
AHDAFEA
GEFG
BBCDDCD
DGAB
EEHCECH
CEDDG
FBEFACA
FAEHHC
BFA
AGHACB
FHFHB
GCHAC
FHFFA
GBCBDGC
FBGCCC
BAGEE
FAB
AEACFC
HFHB
DHH
AEHCA
CCG
BDBHGE
ABBH
CEEA
GGBD
CEBEHC
FBEFAC
GCCCG
CCA
CDG
DAFE
GECC
EBHD
DGEEB
AGBB
DHEEH
CFDGCD
HEGDFBC
BEFAC
DEHHDA
DDC
EECBHA
BBAHEF
CBBCHEF
AABBC
DFE
BAF
HDABFB
BABACBF
CGDBAG
BBCDD
CCAFFC
FEAADCD
FCED
FBDB
HEHDBF
CEDCFDG
HGEC
GBACCFD
CAHA
GCGG
FEEB
ECAC
FBC
HEHDB
BACBFH
DGCE
FHFCGDB
BFBDB
CBFHF
CDF
HCGB
EHBD
FGHEHD
DHH
ADBAFHA
BCBBDCA
FGCAHA
CCAF
CCFAF
EDDGEE
DFHGHF
CHBAEG
HEFGC
EAH
GFCHF
FHEFGCC
DECBA
HHGBEFB
FGCB
CEBBHA
FCG
CCD
GBCBE
HAH
HAHFGBC
HDDFB
ECB
BADDCED
EBA
BAC
HBEEE
FCBBEDH
FAHB
CBF
FAHBAH
HBGCGF
FFC
CEBHDBA
GFB
EADG
DABH
DAABBC
CGFCFEE
AHHF
ACBC
BFB
FAFHEFG
ABC
DHHDC
FHBBBA
EHHGBEF
HAEBACH
FHABAE
CFH
HBFFHD
GBE
EAECH
CDFEF
DFEFEEA
HCE
CFG
ABCB
CCAFB
CCCE
BAHE
EDD
HEC
HDHEE
DFEFE
HEFEAEC
FCD
CFAFH
ABD
GEEBD
HBCGF
CDB
DFCEDDG
AEG
HGCFG
EEBGC
BBEECBH
FEE
DDBDABG
AGB
EBEH
EGHBGC
CDHAD
FFBBF
BGCH
FHDDFB
DHADC
BFHBCG
FGEFG
BGCCCG
BFFB
ECBHA
DAACHE
EBCAAA
EHH
CGHFBDB
DBC
GEE
HFHFHB
CHB
EHBC
BBEDFCE
GBBBCD
FEEBADC
ACBC
CEE
CGF
CDCHCCD
DDC
ADGHB
HFFCDCH
FEAHH
FHBCG
GBHGBEG
DCDF
DFEFEEA
BCB
CGFC
DHB
DBA
AAAGBAH
GEHC
BDAEACF
CHDHE
BBDAD
CFCAAA
FBDBF
FCC
ECB
AECAC
EEBD
FBDDB
AAGBA