cho day so 10;11;12;13;14; ... ;x. tim x de so chu so gap 4 lan so hang trong day
cho day 31,33,35,...,x . tim x de so chu so cua day gap 3,5 lan so so hang cua day
cho day so 1,2,3,4,5,...,x
tim x de chu so cua day gap 4,5 lan x
cho day so 1 ; 2; 3 ; 4; 5 ..........; x tim so x de so luong chu so cua day gap 5 lan luong so hang cua day
nhanh len nhe
nguoi ta viet 31,32,33,....X.
Tim X de chu so cua day gap 3 lan X
tim so a de so chu so cua day gap gap 3 lan a 1,2,3,..,a
cho day so 2,4,6,8,...,x tim x biet so chu so cua day gap 2 lan x
Cho day 31,33,35.....x Tim x de so chu so cua day gap 3,5 so hang cua day?
cho day so 2,4,6,8,...,x tim x biet cac chu so cua day gap 2 lan x
