z1 := (1,2,4,3)(5,9,7,10)(6,11,8,12)(13,21,15,22)(14,23,16,24)(17,25,19,26)
     (18,27,20,28)(29,45,31,46)(30,47,32,48)(33,49,35,50)(34,51,36,52)(37,53,
     39,54)(38,55,40,56)(41,57,43,58)(42,59,44,60)(61,81,62,82)(63,83,65,84)
     (64,85,66,86)(67,87,68,88)(69,89,71,90)(70,91,72,92)(73,93,75,94)(74,95,
     76,96)(77,97,79,98)(78,99,80,100)(101,129,103,130)(102,131,104,132)(105,
     133,106,134)(107,135,109,136)(108,137,110,138)(111,139,113,140)(112,141,
     114,142)(115,143,117,144)(116,145,118,146)(119,147,120,148)(121,149,123,
     150)(122,151,124,152)(125,153,127,154)(126,155,128,156)(157,177,158,178)
     (159,179,160,180)(161,181,163,182)(162,183,164,184)(165,185,166,186)(167,
     187,168,188)(169,189,170,190)(171,191,172,192)(173,193,175,194)(174,195,
     176,196)(197,205,198,206)(199,207,200,208)(201,209,202,210)(203,211,204,
     212)(213,217,214,218)(215,219,216,220)(221,223,222,224);