#include <stdio.h>
using namespace std;
int n,c1,c2,a[20][5],contor,aux,p;
int main()
{
    do
    {
        contor++;
        scanf("%d %d %d",&n,&c1,&c2);
        a[contor][1] = n;
        a[contor][2] = c1;
        a[contor][3] = c2;
        if(n==0&&c1==0&&c2==0)break;
    }while(!(n==0&&c1==0&&c2==0));
    for(int i=1;i<=contor;++i)
    {
        n = a[i][1];
        c1 = a[i][2];
        c2 = a[i][3];
        aux = 0;p = 1;
        do
        {
            if(n%10==c1)aux = aux+c2*p;
            else aux = aux+(n%10)*p;
            n/=10;
            p*=10;
        }while(!(n==0));
        printf("%d\n",aux);
    }
    return 0;
}