#include<iostream>
#include<sstream>
using namespace std;
int main(){
    string a,b;
    string c;
    getline(cin,a);
  cin>>b>>c;
    stringstream ssin(a);
    string str;
    while(ssin>>str){
        if(str==b)cout<<c<<' ';
        else cout<<str<<" ";
    }
}