#include <bits/stdc++.h>
using namespace std;
int main()
{
  string a[10000],b,c;
  int n=0;
  while(cin>>a[n])
  {
    n++;
    char x=getchar();
    if(x=='\n')break;
  }
  cin>>b>>c;
  for(int i=0;i<n;i++)
  {
    if(a[i]==b)cout<<c<<" ";
    else cout<<a[i]<<" ";
  }
  return 0;
}