
import java.util.Scanner


object Main {

  def read(): (Int, String) = {
    val sc: Scanner = new Scanner(System.in)
    val a = sc.nextInt
    val s = sc.next
    sc.close()
    (a, s)
  }


  def solve(a: Int, s: String): String = {
    if(a < 3200) "red" else s
  }


  def main(): Unit = {
    val (a, s) = read()
    println(solve(a, s))
  }

}
