#include <iostream>
#include <string>

using namespace std;
int main()
{
  string nr,nr2,nr3;
  cin>>nr;
  cin>>nr2;
  cin>>nr3;
  
  while (!(nr[0]=='0' && nr2[0]=='0' && nr3[0]=='0'))
{
  for (int i=0; i<nr.size();i++)
  {
      if (nr[i]==nr2[0])
        nr[i]=nr3[0];
  }
  int value = atoi(nr.c_str());
  cout << value << "\n";
  cin>>nr;
  cin>>nr2;
  cin>>nr3;
}
}