#include <bits/stdc++.h>
using namespace std;
using namespace chrono;

vector<string> strings{
        "RGB",
        "GRB",
        "GBR",
        "BGR",
        "BRG",
        "RBG"
};

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    int t; cin >> t; while (t--) {
        int k; cin >> k;
        cout << strings[k % 6] << "\n";
    }
}