#include <iostream>
using namespace std;
int n, s;
int swap(int x, int c1, int c2)//problema nc1c2 mindcoding
{   if (x==0) return 0;
    int uc=x%10;
    if (uc==c1) uc=c2;
    return swap(x/10, c1, c2)*10+uc;
}
int main()
{   int c1, c2;
    cin>>n>>c1>>c2;
    while (!(n==0&&c1==0&&c2==0))
    {   if (n==0 && c1==0 &&c2!=0)cout<<c2<<'\n';
        else cout<<swap(n, c1, c2)<<'\n';
        cin>>n>>c1>>c2;
    }
    return 0;
}