#include <stdio.h>
#include <stdlib.h>

int main()
{
    int n,c1,t=1,c2,a[16],m,c,i=0,p;
    scanf("%d%d%d",&n,&c1,&c2);
    if((n==0)&&(c1==0)&&(c2==0))
        t=0;
    while(t==1)
    {
        a[i]=0;
        p=1;
        m=0;
        while(n)
        {
            c=n%10;
            n=n/10;
            if(c==c1)
                    m=m+p*c2;
            else
                    m=m+p*c;
            p=p*10;
        }
        printf("%d",m);
        scanf("%d%d%d",&n,&c1,&c2);
        if((n==0)&&(c1==0)&&(c2==0))
            t=0;
    }
    return 0;

}