#include <iostream>

using namespace std;

int main()
{
    long long int c1,n,c2,m,k;
    cin>>n>>c1>>c2;
    while(n!=0||c1!=0||c2!=0)
    {
        k = 1;
        m = 0;
        while(n)
        {
            if(n%10==c1) m += c2*k;
            else m += (n%10)*k;
            k*=10;
            n=n/10;
        }
        cout<<m<<endl;
        cin>>n>>c1>>c2;
    }
}