#include <iostream>
#include <vector>

using namespace std;

int main() {
	int n, k;
	cin >> n >> k;
	vector<int> x(n), y(n), hp(n);
	for (int i = 0; i < n; ++i) {
		cin >> x[i] >> y[i] >> hp[i];
	}
	vector<int> ax(k), ay(k), w(k), h(k), d(k);
	for (int i = 0; i < k; ++i) {
		cin >> ax[i] >> ay[i] >> w[i] >> h[i] >> d[i];
	}
	vector<vector<int> > offset(1001 + 1, vector<int>(1001));
	for (int i = 0; i < n; ++i) {
		offset[x[i] + 500][y[i] + 500] += hp[i];
		offset[x[i] + 500 + 1][y[i] + 500] -= hp[i];
	}
	for (int i = 0; i < k; ++i) {
		for (int y = ay[i]; y <= ay[i] + h[i]; ++y) {
			if (y + 500 < 1001) {
				offset[ax[i] + 500][y + 500] -= d[i];
				if (ax[i] + w[i] + 1 + 500 < 1001 + 1) {
					offset[ax[i] + w[i] + 1 + 500][y + 500] += d[i];
				}
			}
		}
	}
	int hpSum = 0;
	for (int y = 0; y <= 1000; ++y) {
		int current = 0;
		for (int x = 0; x <= 1000; ++x) {
			current += offset[x][y];
			if (current > 0) {
				hpSum += current;
			}
		}
	}
	cout << hpSum << endl;
	return 0;
}