#include <iostream>
#include <fstream>
#include <math.h>
#include <cstring>
using namespace std;
ifstream f("mian.in");
ofstream g("custi.out");
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;
}