#include<bits/stdc++.h>

#define int long long

using namespace std;

int gcd(int a, int b) {
    int res = 1;
    if (!a) return b;
    if (!b) return a;
    while (!(a % 2) && !(b % 2))
    { res *= 2; b /= 2; a /= 2; }
    while (!(a % 2))
        a /= 2;
    while (!(b % 2))
        b /= 2;
    if (a > b) {int t = a; a = b; b = t;}
    return res * gcd(a, b - a);}


int32_t main() {
    int t; cin >> t;
    while (t--) {
        int r, b, k; cin >> r >> b >> k;
        if (r > b) { int t = r; r = b; b = t;}
        if ((b - 1 - gcd(b, r)) / r + 1 >= k)
            cout << "REBEL\n";
        else
            cout << "OBEY\n"; }
    return 0;
}