#include <iostream>

using namespace std;

int main()
{
    int n,c1,c2;

    while(!(n==0 && c1==0 && c2==0))
    {
        int newN=0;
        cin>>n>>c1>>c2;

        int k=1;
        while(n)
        {
            newN+=  n%10==c1? k*c2 : k*(n%10);
            n/=10;
            k*=10;
        }
        cout<<newN;

    }
    return 0;
}