#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <queue>
#include <stack>
#include <deque>
#include <set>
#include <map>
#include <algorithm>

#include <cmath>
#include <ctime>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
using namespace std;

const int INF = 0x3f3f3f3f;
const double EPS = 1e-11;
const double PI = 3.141592653589793;
const int MAX_N = 100005;
const long long LLINF = 99999999999999999LL;

int N;
int v[MAX_N];

int main() {
    /*
    #ifndef ONLINE_JUDGE
        freopen("data.in", "r", stdin);
    #endif
    */

    bool ok = 1;
    while(ok) {
        int x, y;

        cin >> N >> x >> y;

        if(N == 0 && x == 0 && y == 0)
            break;

        int n = 0;

        if(N == 0)
            v[++n] = 0;

        while(N) {
            v[++n] = N % 10;
            N /= 10;
        }

        for(int i = 1; i <= n; ++i)
            if(v[i] == x)
                v[i] = y;

        int ans = 0;
        for(int i = n; i >= 1; --i)
            ans = ans * 10 + v[i];

        cout << ans << "\n";
    }

    return 0;
}