#include<bits/stdc++.h>
using namespace std;
int main(){
	string a,s;
  	cin>>a>>s;
  	/*if(a.size()>4){
    	cout<<"red";
        return 0;
    }*/
  	else if(a.size()<4)
    {
      cout<<s;
      return 0;
    }
  	int sum=0;
      int x=1;
    for(int i=0;i<a.size();i++){
        sum+=(a[i]-'0')*x;
        x*=10;
    }
  	//sum+=(a[0]-'0')+(a[1]-'0')*10 + (a[2]-'0')*100+(a[3]-'0')*1000;
  	if(sum<3200)
    {
      cout<<"red";
    }
  else
    cout<<s;
  return 0;
  	
}