ABC089B - Hina Arare

問題：B - Hina Arare

#include <iostream>
using namespace std;

#define REP(i, n) for (int i = 0; i < (n); ++i)

int main(void) {
    int n;
    char s;
    bool four_flg = false;

    cin.tie(0);
    ios::sync_with_stdio(false);
    cin >> n;
    REP(i, n) {
        cin >> s;
        if (s == 'Y') {
            four_flg = true;
        }
    }
    
    cout << (four_flg? "Four" : "Three") << "\n";
    return 0;
}