#include <bits/stdc++.h>

using namespace std;

int repl(int n, int c1, int c2) {
    if (n == 0)
        return 0;
    if (n % 10 == c1) {
        return repl(n / 10, c1, c2) * 10 + c2;
    } else
        return repl(n / 10, c1, c2) * 10 + n % 10;
}

int main() {
    int n, c1, c2;

    while (1) {
        cin >> n >> c1 >> c2;
        if (!n && !c1 && !c2)
            break;

        cout << repl(n, c1, c2) << '\n';
    }

    return 0;
}