#include <iostream>

using namespace std;
int nr(int n,int c1,int c2)
{
    int uc;
    if (n==0) return 0;
    uc=n%10;
    if (uc==c1) uc=c2;
    return nr(n/10,c1,c2)*10+uc;
}
int main()
{
    int n,c1,c2;
    while (cin>>n)
    {
        cin>>c1>>c2;
        if (n==0 && c1==0 && c2==0)
            return 0;
        if (n==0 && c1==0 && c2!=0) cout<<c2<<"\n";
        else cout<<nr(n,c1,c2)<<"\n";
    }
    return 0;
}