b11 := (1,2,4,3)(5,9,7,10)(6,11,8,12)(13,19,15,17)(14,21,16,22)(18,23,20,24)
     (25,29,27,30)(26,31,28,32)(33,35,34,36)(37,41,39,42)(38,43,40,44)(45,50,
     47,52)(46,53,48,54)(49,55,51,56)(57,65,59,66)(58,67,60,68)(61,69,63,70)
     (62,71,64,72)(73,89,75,90)(74,91,76,92)(77,93,79,94)(78,81,80,83)(82,95,
     84,96)(85,97,87,98)(86,99,88,100)(101,113,102,114)(103,115,104,116)(105,
     117,107,118)(106,119,108,120)(109,121,111,122)(110,123,112,124)(125,128,
     127,126)(129,142,131,140)(130,133,132,135)(134,143,136,144)(137,145,138,
     146)(139,147,141,148)(149,157,151,158)(150,155,152,153)(154,159,156,160)
     (161,166,163,168)(162,169,164,170)(165,171,167,172)(173,181,175,182)(174,
     183,176,184)(177,185,179,186)(178,187,180,188)(189,193,190,194)(191,195,
     192,196)(197,200,199,198);