
#include <iostream>
#include <math.h>
using namespace std;

int main(void) {
    
  int a;
  string hy9r;
  
  cin >> a;
  cin >> hy9r;
  
  if ( a < 3200 ) {
    cout << "red" << endl;
  }
  
  if ( a >= 3200 ) {
    cout << s << endl;
  }
  return 0;
}
