#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("date.in");

int b, c;

int rez(int nr)
{
    if(nr == 0)
        return 0;
    rez(nr/10);
    if(nr%10 == b)
    return rez(nr/10) * 10 + c;
    else
    return rez(nr/10) * 10 + (nr % 10);
}

int main()
{
    int a;
    do{
        cin >> a >> b >> c;
     //   cout << ((a | b)|c)  << "\n";
        if(a + b + c == 0)
            continue;
        if(a == 0)
        {
            if(b == 0)
                cout << c << "\n";
            else
                cout << a << "\n";
            continue;
        }
        cout << rez(a);
        cout << "\n";
    }while(a|b|c);
    return 0;
}