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