z1 := (1,2,3)(4,6,7)(5,8,9)(10,13,14)(11,15,16)(12,17,18)(19,25,26)(20,27,28)
     (21,29,30)(22,31,32)(23,33,34)(24,35,36)(37,49,50)(38,51,52)(39,53,54)
     (40,55,56)(41,57,58)(42,59,60)(43,61,62)(44,63,64)(45,65,66)(46,67,68)
     (47,69,70)(48,71,72)(73,93,94)(74,95,96)(75,97,98)(76,99,100)(77,101,102)
     (78,103,104)(79,105,106)(80,107,108)(81,109,110)(82,111,112)(83,113,114)
     (84,115,116)(85,117,118)(86,119,120)(87,121,122)(88,123,124)(89,125,126)
     (90,127,128)(91,129,130)(92,131,132)(133,165,166)(134,167,168)(135,163,
     169)(136,170,171)(137,172,173)(138,174,175)(139,176,177)(140,178,179)
     (141,180,181)(142,182,183)(143,184,185)(144,186,187)(145,188,189)(146,
     190,191)(147,192,193)(148,194,160)(149,195,196)(150,197,198)(151,199,200)
     (152,201,202)(153,203,204)(154,205,206)(155,207,208)(156,209,210)(157,
     211,212)(158,213,214)(159,215,216)(161,217,218)(162,219,220)(164,221,222)
     (223,274,275)(224,276,277)(225,272,278)(226,244,279)(227,280,281)(228,
     239,282)(229,283,284)(230,285,286)(231,287,288)(232,289,290)(233,246,291)
     (234,292,293)(235,248,294)(236,295,296)(237,297,298)(238,299,300)(240,
     301,302)(241,303,304)(242,256,305)(243,306,307)(245,308,309)(247,310,311)
     (249,312,258)(250,313,314)(251,315,316)(252,317,318)(253,319,320)(254,
     321,322)(255,323,324)(257,325,326)(259,327,328)(260,329,330)(261,331,332)
     (262,333,334)(263,335,336)(264,337,338)(265,339,340)(266,341,342)(267,
     343,344)(268,345,346)(269,347,348)(270,349,350)(271,351,352)(273,353,354)
     (355,396,380)(356,397,398)(357,399,400)(358,401,402)(359,403,404)(360,
     375,405)(361,406,407)(362,408,377)(363,391,409)(364,410,411)(365,412,413)
     (366,388,414)(367,415,416)(368,417,418)(369,419,420)(370,421,422)(371,
     423,424)(372,425,426)(373,387,427)(374,428,429)(376,430,431)(378,432,433)
     (379,434,435)(381,436,437)(382,438,439)(383,440,441)(384,442,390)(385,
     443,444)(386,445,446)(389,447,448)(392,449,450)(393,451,452)(394,453,454)
     (395,455,456)(457,476,475)(458,459,477)(460,478,479)(461,464,480)(462,
     473,481)(463,482,483)(465,468,484)(466,485,474)(467,469,486)(470,487,488)
     (471,489,490)(472,491,492)(494,495,496);