#include <iostream>
#include <fstream>
using namespace std;

int n ,c1,c2;

int main()
{
   freopen("input.in","r", stdin);



    while ( cin >> n >> c1 >> c2 )
    {

        if(n==0 && c1==0 && c2==0)
             return 0 ;

        if (n == c1)
            cout << c2 << '\n' ;
        else
        {
            int dummy = 0 ;
            for (int i = 100000 ; i > 0 ; i = i /10 )
            {
                int x ;
                if ( ( x = ((n / i )%10) ) == c1  )
                    dummy = dummy * 10 + c2 ;
                else dummy = dummy * 10 + x ;
            }
                cout << dummy << '\n';

        }

    }

    return 0;
}