30x4yx=302412,302422,302432,302442,302452,302462,302472,302482,302492,304414,3o4424,304434,304444,304454,304464,304474,304484,304484,306416,306426,306436,306446,306456,306466,306476,306486,306496,,308418,308428,308438,308448,308458,308468,308478,308488,308498(30x4yxdivizibil cu doi daca ultima cifra e doi in cazul asta x=2,4,6,8si y=1,2,3,4,5,6,7,8,9)
30x4yx(x=0;5 si y=1,2,3,4,5,6,7,8,9
