Numbers

#include <iostream>
using namespace std;

int main() {

    int a, b, k, br = 0;

    do {
        cout << "a = "; cin >> a;
    } while (a < 0 || a > 10);

    do {
        cout << "b = "; cin >> b;
    } while (b < 0 || b > 10);

    do {
        cout << "k = "; cin >> k;
    } while (k < 1 || k > 100);

    for (int i = 0; i <= 9; i++)
    {
        if ((a * 100 + i * 10 + b * 1) % k == 0)
            br++;
    }

    cout << br << endl;

    system("pause");
    return 0;
}