#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

struct iostream_init_struct
{ 
	iostream_init_struct()
	{
		std::cin.tie(0);
		std::ios::sync_with_stdio(false);
	}
} iostream_init;

// index begins with 1
class BIT
{
public:
	vector<long long> data;
	const int msb_n;

	BIT(int n) : data(n + 1), msb_n(1 << log(n)) {}

	void add(int i, int v)
	{
		for (int x = i; x < data.size(); x += x & -x)
		{
			data[x] += v;
		}
	}

	//long long sum(int i)
	//{
	//	int ret = 0;
	//	for (int x = i; x > 0; x -= x & -x)
	//	{
	//		ret += data[x];
	//	}
	//	return ret;
	//}

	int lowerBound(long long v)
	{
		int x = 0;
		for (int k = msb_n; k > 0; k /= 2)
		{
			if (x + k < data.size() && data[x + k] < v)
			{
				v -= data[x + k];
				x += k;
			}
		}
		return x + 1;
	}

	inline static int log(int n)
	{
#ifdef __GNUC__
		return std::__lg(n);
#else
		int ret = 0;
		while (n = n >> 1)
		{
			ret += 1;
		}
		return ret;
#endif
	}
};

int n;
long long h;
int w;

// adding_data[i][]
//        i: place
//    first: time
//   second: b (height)
vector<vector<pair<int, int>>> adding_data;

int main()
{
	cin >> n >> w >> h;
	adding_data = vector<vector<pair<int, int>>>(w + 2);
	for (int i = 1; i <= n; ++i)
	{
		int a, b, x;
		cin >> a >> b >> x;
		adding_data[x].emplace_back(i, b);
		adding_data[x + a].emplace_back(i, -b);
	}

	BIT bit(w);

	int A_score = 0;
	for (int x = 1; x <= w; ++x)
	{
		for (auto data : adding_data[x])
		{
			int time = data.first;
			int add_height = data.second;
			bit.add(time, add_height);
		}
		A_score += bit.lowerBound(h) & 1;
	}

	int B_score = w - A_score;

	if (A_score > B_score)
		cout << "A" << endl;
	else if (A_score < B_score)
		cout << "B" << endl;
	else
		cout << "DRAW" << endl;
}