package com.codegym.task.task04.task0416; /* Crossing the road blindly */ import java.io.*; public class Solution { public static void main(String[] args) throws Exception { //write your code here BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); double num = Integer.parseInt(reader.nextDouble()); if ((num % 5) == 3) { System.out.println("yellow"); } else if ((num % 5) == 4) { System.out.println("red"); } else { System.out.println("green"); } } }