#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;
}