a := (1,105)(2,67)(3,151)(4,109)(5,38)(6,15)(7,47)(8,19)(9,121)(10, 64)(11,133)(12,82)(13,99)(14,93)(16,91)(17,152)(18,128)(20,81)(21, 54)(22,112)(23,36)(24,144)(25,73)(28,140)(29,45)(30,60)(31,125)(32, 142)(33,76)(35,113)(37,92)(39,101)(40,84)(41,88)(43,59)(44,138)(46, 126)(48,80)(49,130)(50,155)(51,55)(52,117)(53,63)(56,134)(58, 124)(61,141)(62,77)(65,156)(66,129)(68,90)(69,95)(70,85)(71,100)(74, 146)(75,114)(78,136)(79,119)(83,150)(86,110)(87,107)(89,149)(94, 111)(96,148)(97,147)(98,108)(103,104)(116,145)(118,131)(120, 153)(123,139)(127,132)(135,154);