#include<iostream>
#include<vector>
using namespace std;

int main(){

int a=1,b=2,c=3,rs;

while(cin>>a){
  cin>>b>>c;
if(a!=0||b!=0||c!=0){
        rs=0;
    while(a){rs=rs*10+a%10;a/=10;};
    while(rs){
        if(rs%10==b)a=a*10+c;
        else a=a*10+rs%10;
        rs/=10;
    }
    cout<<a<<"\n";
}else break;
}

}