#include <iostream>

using namespace std;

int v[2000];

int main()
{
    int n, c1, c2;
    int k = 0;
    while (1)
    {
        ++k;
        cin >> n >> c1 >> c2;
        if (n == 0 && c1 == 0 && c2 == 0)
            break;
        int y = 0;
        int c;
        int p = 1;
        while (n)
        {
            c = n % 10;
            if (c == c1)
                c = c2;
            y += c * p;
            p *= 10;
            n /= 10;
        }

        cout << y << '\n';
    }

    return 0;
}