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