how to solve
package com.codegym.task.task04.task0416;
/*
*/
import java.io.*;
import java.util.*;
public class Solution {
public static void main(String[] args) throws Exception {
//write your code here
BufferedReader x = new BufferedReader(new InputStreamReader(System.in));
String s = x.readLine();
double t = Double.parseDouble(s);
if ( t < 3){
System.out.println("green");}
else if(t < 4){
System.out.println("yellow");}
else{
System.out.println("red");
}
}
}