#include <iostream>

using namespace std;

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


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

            if(n%10!=0)k*=10;
            n/=10;
        }
        cout<<newN<<endl;
        cin>>n>>c1>>c2;
    }
    return 0;
}