#include<bits/stdc++.h>
using namespace std;
int main()
{
	int t;
	cin >> t;
	while(t--){
		int n, x, y;
		cin >> n >> x >> y;
		int arr[n];
		int i;
		int sum1 = 0;
		int sum2 = 0;
		for(i = 0; i < n; i++){
			cin >> arr[i];
		}
		for(i = 0; i < n; i++){
			sum1 += arr[i];
		}
		int r;
		for(i = 0; i < n; i++){
			if(arr[i] / y != 0){
				r = arr[i] - y;
				sum2 += r;
			}
			else{
				sum2 += 0;
			}
		}
		if( x + sum2 <  sum1){
			cout << "COUPON\n";
		}
		else {
			cout << "NO COUPON\n";
		}
		sum1 = 0;
		sum2 = 0;
	}
	return 0;
}

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5
4 30 10
15 8 22 6
4 40 10
15 8 22 6
4 34 10
15 8 22 6
2 10 100
60 80
3 30 5
50 60 50