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

int main()
{
    string s,a,b;
    getline(cin,s);
    stringstream ss = stringstream(s); // 初始化流
    cin >> a>>b;
    while(ss >> s)
    {
        if(s==a) cout<<b<<" ";
        else cout<<s<<" ";
    }
}