#include<cstdio>
int main(){
    //freopen("std.in","r",stdin);
    //freopen("std.out","w",stdout);
    int n,c1,c2;
    scanf("%d %d %d",&n,&c1,&c2);
    int cn;
    while(n!=0||c1!=0||c2!=0){
        int nr=0;
        cn=n;
        bool f=false;
        if(n==0&&c1==0){
            f=true;
            nr=c2;
        }
        while(n!=0){
            int c=n%10;
            if(c1==c)
                nr=nr*10+c2;
            else
                nr=nr*10+c;
            n/=10;
        }
        n=0;
        while(nr!=0){
            int c=nr%10;
            n=n*10+c;
            nr/=10;
        }
        if(f)
            printf("%d\n",c2);
        else{
            printf("%d",n);
            if(c2==0&&n!=0){
                while(cn!=0&&cn%10==c1){
                    printf("0");
                    cn/=10;
                }
            }
            printf("\n");
        }
        scanf("%d %d %d",&n,&c1,&c2);
    }
}