#include <iostream>

using namespace std;
int a,n,v[17],c1,c2,b,c,k,i;
int main()
{
 cin>>n>>c1>>c2;
 k=1;
 while(n!=0 || c1!=0 ||c2!=0)
 {
     b=0;a=0;
     while(n!=0)
     {
         c=n%10;
         if(c==c1)c=c2;
         a=a*10+c;
         n=n/10;
     }

     while(a!=0)
     {
         b=b*10+a%10;
         a=a/10;
     }


     v[k]=b;
      k=k+1;
     cin>>n>>c1>>c2;
 }
 for(i=1;i<=k-1;i++) cout<<v[i]<<"\n";
    return 0;
}