PAINTING TS10 PTNK 2020-2021

#define task "PAINTING"

#include <iostream>
#include <cstdio>

using namespace std;

using ll = long long;
using ld = long double;

constexpr int N = 1e5 + 5;
int n, q;

void Read()
{
    cin >> n >> q;
}

void Solve()
{
    while (q--)
    {
        int x, y;
        cin >> x >> y;
        if (x * 2 > n)
            x = n - x + 1;
        if (y * 2 > n)
            y = n - y + 1;

        int ans = (y <= x) ? (y % 3) : (x % 3);

        if (ans == 1)
            cout << "RED\n";
        else if (ans == 2)
            cout << "BLUE\n";
        else
            cout << "YELLOW\n";
    }
}

int32_t main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    if (fopen(task ".INP", "r"))
    {
        freopen(task ".INP", "r", stdin);
        freopen(task ".OUT", "w", stdout);
    }
    Read();
    Solve();
}