#include <iostream>
using namespace std;

int main() {
    int a, firstNo, sumFriends = 0;
    cin >> a;
    firstNo = a;
    while (a != 0) {
        if (a % firstNo == 0) {
            ++sumFriends;
        }
        cin >> a;
    }
    cout << sumFriends;
    return 0;
}