z1 := (1,2,5,3)(4,7,13,8)(6,10,18,11)(9,15,26,16)(12,20,34,21)(14,23,38,24)
     (17,28,45,29)(19,31,50,32)(22,36,56,37)(25,40,54,35)(27,42,64,43)(30,47,
     71,48)(33,51,77,52)(39,59,87,60)(41,62)(44,66,96,67)(46,69)(49,73,102,74)
     (53,78,107,79)(55,81,110,82)(57,72,100,83)(58,84,113,85)(61,88,115,89)
     (63,91,86,92)(65,68,76,94)(70,98,125,99)(75,103,121,104)(80,95,122,108)
     (90,117,130,118)(93,119,144,120)(97,109,136,123)(101,128)(105,131,141,
     132)(106,133,155,134)(111,112,139,138)(114,140)(116,142,156,135)(124,146)
     (126,148,165,149)(127,150,168,151)(129,145)(137,143,163,158)(147,157,160,
     162)(152,166,153,169)(154,170,172,161)(159,171)(164,173)(167,174,176,175);