| The nodes are numbered from 0 to 27, and the edges are: (0,14) (0,27) (0,17) (0,9) (0,10) (0,2) (0,4) (0,20) (1,22) (1,13) (1,7) (1,21) (1,12) (1,19) (1,6) (1,26) (1,5) (1,16) (1,8) (2,14) (2,24) (2,17) (2,9) (2,15) (2,10) (2,18) (3,14) (3,24) (3,15) (3,10) (3,18) (4,14) (4,27) (4,9) (4,15) (4,10) (4,18) (4,20) (5,13) (5,7) (5,23) (5,25) (5,12) (5,19) (5,6) (5,26) (5,11) (5,16) (6,22) (6,13) (6,7) (6,23) (6,21) (6,12) (6,19) (6,11) (6,16) (6,8) (7,22) (7,13) (7,23) (7,12) (7,19) (7,26) (7,11) (7,16) (7,8) (8,22) (8,13) (8,23) (8,25) (8,21) (8,19) (8,16) (9,14) (9,24) (9,17) (9,10) (9,20) (10,14) (10,24) (10,17) (10,18) (11,22) (11,13) (11,12) (11,19) (11,26) (11,16) (12,22) (12,13) (12,21) (12,19) (12,26) (12,16) (13,22) (13,23) (13,19) (14,24) (14,17) (14,15) (14,18) (14,20) (15,27) (15,17) (15,18) (16,22) (16,23) (16,25) (16,21) (16,26) (17,27) (17,18) (17,20) (18,27) (18,20) (19,22) (19,23) (19,25) (19,21) (20,24) (20,27) (21,22) (21,23) (21,25) (21,26) (22,25) (22,26) (23,26) (24,27) (25,26). |
