b21 := (1,318,202,142,221)(2,234,203,229,101)(3,76,22,72,258)(4,46,131,211,98)
     (5,214,264,204,139)(6,307,28,44,157)(7,310,9,308,280)(8,21,32,346,163)
     (10,230,128,100,65)(11,228,64,127,56)(12,87,29,340,158)(13,222,324,178,
     218)(14,219,161,174,159)(15,225,109,175,90)(16,59,317,77,141)(17,288,323,
     309,50)(18,150,282,189,149)(19,185,326,164,49)(20,249,105,34,102)(23,93,
     106,85,259)(24,272,67,200,331)(25,192,166,182,291)(26,207,278,248,42)(27,
     232,107,126,74)(30,217,231,62,205)(31,315,91,294,290)(33,82,68,120,301)
     (35,251,88,303,286)(36,227,43,275,268)(37,130,54,245,112)(38,124,94,321,
     53)(39,285,190,342,226)(40,314,198,299,176)(41,289,277,344,92)(45,333,
     110,162,122)(47,169,269,153,57)(48,196,179,167,187)(51,305,253,330,55)
     (52,188,213,183,140)(58,350,247,347,144)(60,311,302,235,81)(61,136,96,
     257,84)(63,328,306,284,114)(66,129,116,210,135)(69,212,216,339,152)(70,
     191,322,334,293)(71,327,243,276,156)(73,195,194,343,168)(75,266,297,256,
     108)(78,261,103,260,240)(79,115,177,99,239)(80,316,172,143,181)(83,287,
     160,313,236)(86,352,325,148,283)(89,319,329,137,273)(95,267,170,270,279)
     (97,335,298,155,220)(104,238,337,121,252)(111,274,263,312,119)(113,338,
     304,151,341)(117,336,242,244,118)(123,146,138,300,180)(125,271,250,255,
     133)(132,281,134,246,348)(145,186,233,209,349)(147,173,351,320,224)(154,
     199,215,184,223)(165,332,208,171,201)(197,237,206,296,254)(241,295,262,
     292,345);