#include <iostream>
#include <cmath>

using namespace std;
int main ()
{
    int c1, c2, n, count = 0;
    int o = 0;
    do{     count = 0;
            cin >> n;
            cin >> c1 >> c2;
    while (n)
    {
        count++;
        if (n % 10 == c1)
            o = o * 10 + c2;
        else o = o * 10 + n % 10;
        n /= 10;

    }
    count--;
    while (o)
    {
        n = n * 10 + o % 10;
        o /= 10;
    }
    if (n < 10)cout << n * pow (10, count) << endl;
    else
    if (n > 10)
    cout << n << endl;
    if (n == 0)
        break; }while (n);

    
}