#include <bits/stdc++.h> using namespace std; #define rep(i, n) for(int i=0; i<n; i++) #define debug 0 #define YES cout << "Yes" << endl; #define NO cout << "No" << endl; using ll = long long; using ld = long double; const int mod = 998244353; const int MOD = 1000000007; const double pi = atan2(0, -1); #include <time.h> #include <chrono> int main() { int N; cin >> N; if (N < 1200) { cout << "green" << endl; } else { cout << "difficult" << endl; } }