#include <iostream>

using namespace std;

int cif(int&a, int b)
{
    int c=0;
    while (a)
    {
        if (a%10==b)
            c++;
        a=a/10;
    }
    cout << c;
}

int main()
{
    int a,b;
    cin >> a >> b;
    cif(a,b);
}