
#include<bits/stdc++.h>

#define ALL(c) c.begin(),c.end()
#define LOOP(v_name, loop_start, loop_bound) for (int(v_name) = (loop_start); (v_name) < (loop_bound); ++(v_name))
#define RLOOP(v_name, rloop_start, rloop_bound) for (int(v_name) = (rloop_start-1); v_name >= (rloop_bound); --(v_name))
#define EN_FAST_IO ios::sync_with_stdio(0);cin.tie(0);

using namespace std;
using ll = long long;
typedef vector<ll> vll;



int main(){
    EN_FAST_IO;
    int n;
    string s;
    cin>>a>>s;

    if(a>=3200){
        cout<<s;
    }
    else<<cout<<"red";
    return 0;
}