#include <bits/stdc++.h>

#pragma GCC optimize("Ofast")
using namespace std;

void solve(int cs) {
  int lim = 1e7;
  vector<string> res;
  string s = "RGB";
  while (lim--) {
    swap(s[0], s[1]);
    res.push_back(s);
    if(lim > 0) {
      swap(s[1], s[2]);
      res.push_back(s);
      lim -= 1;
    }
  }
  int t;
  cin >> t;
  while (t--) {
    int n;
    cin >> n;
    cout << res[n - 1] << "\n";
  }
}

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  int tc = 1;
  // cin >> tc;
  for (int cs = 1; cs <= tc; cs++) {
    solve(cs);
  }
  return 0;
}