#include <iostream>

using namespace std;

long long N,c1,c2,newN,cifra,answer;

int main()
{
    cin >> N >> c1 >> c2;

    while(N != 0 || c1 != 0 || c2 != 0)
    {
        newN = 1;
        answer = 0;
        while (N != 0)
        {
            cifra = N % 10;
            N /= 10;
            if (cifra == c1)
                cifra = c2;
            newN = newN*10 + cifra;
        }
        if (N == 0 && c1 == 0)
        {
            cout << c2 << '\n';
            cin >> N >> c1 >> c2;
            continue;
        }

        answer = 0;
        while (newN != 1)
        {
            answer = answer*10+(newN%10);
            newN /= 10;
        }

        cout << answer << '\n';

        cin >> N >> c1 >> c2;
    }

    return 0;
}