b11 := (2,4,6)(3,7,8)(5,11,12)(9,14,17)(10,19,21)(13,24,15)(16,28,29)(18,33,32)
     (20,27,37)(22,35,38)(25,40,34)(26,43,44)(30,50,48)(31,47,45)(36,46,58)
     (39,56,61)(52,54,74)(53,65,66)(55,63,78)(59,82,84)(60,85,75)(62,87,86)
     (64,88,89)(67,93,94)(68,95,80)(69,96,98)(70,72,99)(73,102,103)(76,92,101)
     (79,83,109)(81,111,107)(90,97,114)(100,121,116)(110,123,125)(112,113,124);