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

int main(){
    string s, a, b;
    getline(cin, s);
    cin >> a >> b;

    stringstream ssin(s);
    string d;
    while(ssin >> d){
        if(d == a)
            cout << b << " ";
        else
            cout << d << " ";
    }
    return 0;
}