#include <iostream>
#include <string>
 
using Hash = unsigned;
 
inline Hash constexpr h_(char const *input) {
    return *input ?
        static_cast<Hash>(*input) + 33 * h_(input + 1) :
        5381;
}
 
int main()
{
	std::string s;
	std::cin >> s;
	switch (h_(s.c_str()))
	{
		case h_("first"): {
			std::cout << "first" << std::endl;
		} break;
		case h_("second"): {
			std::cout << "second" << std::endl;
		} break;
		case h_("third"): {
			std::cout << "third" << std::endl;
		} break;
	}
	return 0;
}