#include <iostream>
#include <cstdio>
using namespace std;


long x,inv,c1,c2;
int main()
{
    cin>>x>>c1>>c2;
    while (x!=0 || c1!=0 || c2!=0)
    {
        inv=1;
        while (x!=0)
        {
            if (x%10==c1)
                inv=inv*10+c2;
            else
                inv=inv*10+x%10;
            x=x/10;
        }
        x=0;
        while (inv>9)
        {
            x=x*10+inv%10;
            inv/=10;
        }
        cout<<x<<'\n';
        cin>>x>>c1>>c2;
    }


    return 0;
}