b11 := (2,4,3)(5,7,6)(8,9,10)(11,13,12)(14,15,16)(17,18,19)(21,23,22)(24,25,26)
     (27,28,29)(31,32,33)(36,38,37)(39,40,41)(42,43,44)(46,47,48)(51,52,53)
     (57,59,58)(60,61,62)(63,64,65)(67,68,69)(72,73,74)(78,79,80)(85,87,86)
     (88,89,90)(91,92,93)(95,96,97)(100,101,102)(106,107,108)(113,114,115)
     (121,123,122)(124,125,126)(127,128,129)(131,132,133)(136,137,138)(142,
     143,144)(149,150,151)(157,158,159)(166,168,167)(169,170,171)(172,173,174)
     (176,177,178)(181,182,183)(187,188,189)(194,195,196)(202,203,204)(211,
     212,213);