#include <iostream>
using namespace std;
int main ()
{
    int k = 0,v = 0;
    string a,b;
    cin >> a >> b;
    for (int i = 0; i < 4; i++)
    {
        for (int u = 0; u < 4; u++)
        {
            if ((a[i] == b[u]) and (u != i))
                k++;
        }
        if (a[i] == b[i])
            v++;
    }
    cout << v << " " << k;
    return 0;
}