import java.util.*;
 
public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    String s = sc.next();
    
    if(a < 3200){
      System.out.println("s");
    }else if(a >= 3200){
      System.out.println("red");
    }
  }
}