#include<iostream>
#include<sstream>

using namespace std;

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

    stringstream ssin(s);

    string str;

    while(ssin >> str)
    {
        if(str == a) cout << b << ' ';
        else cout << str << ' ';
    }

    return 0;
}