#include <iostream>
#include <fstream>
#include <stack>
#include <cstring>
#include <string>
#include <queue>
#include <vector>
#include <cctype>
#include <algorithm>
#include <iomanip>

using namespace std;

int main()
{
    //freopen("1.in","r",stdin);
    //freopen("1.out","w",stdout);

    int n,a,b;
    while(true)
    {
        cin>>n>>a>>b;
        if(n == 0 && a == 0 && b == 0)
            return 0;
    int r = 0;
    while(n > 0)
    {

        r = r*10 + n%10;
        n/=10;
    }
    while(r)
    {
        if(r%10 == a)
            n = n*10 + b;
        else n = n*10 + r%10;
        r/=10;
    }
    cout<<n;
    cout<<'\n';
    }

    return 0;
}