#include <iostream>
#include <vector>
#include <cstring>
#include <bitset>
#include <set>
#include <deque>
#include <queue>
#include <iomanip>
#include <map>
#include <algorithm>
#include <cmath>
#include <stack>
#include <sstream>
#include <functional>
#include <utility>
#include <cstdio>

using namespace std;

#define mp make_pair
#define pb push_back
#define ff first
#define ss second
#define int64 unsigned long long

int a[10];

int main(){

   ios_base::sync_with_stdio(false);

    int n,c1,c2;
    while(true){
        cin >> n >> c1 >> c2;
        if(n == 0 && c1 == 0 && c2 == 0) return 0;
        a[0] = 0;
        if(n == 0){
            a[0] = 1;
            if(c1 == 0)
                a[1] = c2;
            else a[1] = 0;
        }
        while(n != 0){
            a[0]++;
            if(n%10 == c1)
                a[a[0]] = c2;
            else a[a[0]] = n%10;
            n /= 10;
        }
        while(a[a[0]] == 0 && a[0] > 1) a[0]--;
        for(int i = a[0]; i >= 1; i--)
            cout << a[i];
        cout << "\n";
    }
}