#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <ctime>
#include <cmath>
#include <algorithm>
#include <vector>
#include <queue>
#include <deque>

#define INF (1<<30)
#define mod 666013

using namespace std;
int a, b, c, aux, x, p, r;
int main()
{
    //freopen("1.in", "r", stdin);
    //freopen("1.out", "w", stdout);
    while(1)
    {
        scanf("%d%d%d", &a, &b, &c);
        if(a==0&&b==0&&c==0)
            break;
        aux=a;
        p=1;
        r=0;
        while(aux)
        {
            x=aux%10;
            if(x==b) x=c;
            r+=p*x;
            p*=10;
            aux/=10;
        }
        printf("%d\n", r);
    }
    return 0;
}