#include <iostream>
using namespace std;

int main()
{
    int n,c1,c2,u[7],cif,invers;
    int i;
    while(1)
    {
        cin>>n>>c1>>c2;
        //cout<<n<<' '<<c1<<' '<<c2<<'\n';
        if(n==0 && c1==0 && c2==0) break;

        cif = 0;
        while(n)
        {
            cif++;
            if(n%10 == c1)
            {
                u[cif] = c2;
            }
            else
            {
                u[cif] = n%10;
            }
            n /= 10;
        }

        invers = 0;
        while(cif)
        {
            invers = invers*10 + u[cif];
            cif--;
        }
        cout<<invers<<'\n';
    }

    return 0;
}