a:8=x rest 6
a=8x+6
a € {206,214,222,230,238,246,254,262,270,278, 286,294,302,310,318,326,334,342,350,358,366, 374,382,390,398,406,414,422,430,438,446,454, 462,470,478 ,486,494,502,510,518,526,534,542, 550,558,566, 574,582,590,598}
a:12=x rest 10
a=12x+10
a € {202,214,226,238,250,262,274,286,298,310, 322,334,346,358,370,382,394,406,418,430,442, 454,466,478,490,502,514,526,538,550,562,574,586,598}
a:15=x rest 13
a=15x+13
a € {208,223,238,253,268,283,298,313,328,343, 358,373,388,403,418,433,448,463,478,493,508, 523,538,553,568,583,598}
