#include <cstdio>

using namespace std;

int sol[10];
int main()
{
    //freopen("date.in", "r", stdin);
    //freopen("date.out", "w", stdout);
    int n, nn, a, b, u, i;
    while(1)
    {
        scanf("%d%d%d", &n, &a, &b);
        if(!n and !a and !b)
            break;
        nn = n; u = 0;
        while(nn)
        {
            if(nn%10 == a)
                sol[++u] = b;
            else
                sol[++u] = nn%10;
            nn /= 10;

        }
        while(!sol[u] and u>1)
            u--;
        for(i=u; i>=1; i--)
            printf("%d", sol[i]);
        printf("\n");
    }
    return 0;
}