a := (1,47)(2,66)(3,25)(4,76)(5,16)(6,35)(7,71)(8,59)(9,10)(11,32)(12,
65)(13,78)(14,52)(15,45)(17,38)(18,85)(20,56)(21,26)(22,44)(23,
50)(24,41)(27,82)(29,57)(30,73)(31,34)(33,60)(36,79)(37,63)(39,
69)(40,74)(42,77)(43,68)(46,48)(51,67)(53,75)(55,84)(58,62)(61,
80)(64,72)(70,81);