Module: (C++) Data processing in a loop. Anchoring

Problem

3
/9

We process the digits of the number - 3

Problem

Given a natural number N that does not contain the digit 0. Determine the product of its digits that are multiples of z. If there are no digits that are multiples of z, then print 0.

Input
Enter two numbers separated by a space, first a natural number N, then - z (\(0 < z <= 9\ )).