#include <iostream>
#include <fstream>

using namespace std;

int main()
{
    int n = 1, a, b;
    cin>>n>>a>>b;
    while(n != 0 || a != 0 || b != 0){
        int aux = n , nn = 0 , e = 1;
        do{
            if(aux % 10 != a)
                nn = nn + (aux % 10) * e;
            else
                nn += b * e;
            e *= 10;
            aux /= 10;
        }while(aux);
        cout<<nn<<'\n';
        cin>>n>>a>>b;
    }

    return 0;
}