#include <bits/stdc++.h>
#ifdef _DEBUG
#include "debug.hpp"
#else
#define debug(...)
#endif
#define fastIO (cin.tie(0), cout.tie(0), ios::sync_with_stdio(false))
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define precise(i) fixed << setprecision(i)
using namespace std;
using ull = uint64_t;
using Height = int;

void solve() {
  int cnt = 0;
  rep(i, 3) {
    string s;
    cin >> s;
    if(s == "RED") cnt++;
  }
  if(cnt >= 2)
    cout << "RED" << endl;
  else
    cout << "BLUE" << endl;
}

void wrapper() {
  int loop;
  cin >> loop;
  rep(i, loop) {
    cout << "[TEST " << i + 1 << "]\n";
    solve();
    cout << "\n";
  }
}

int main() {
  fastIO;
#ifdef _DEBUG
  wrapper();
#else
  solve();
#endif
}