#include "bits/stdc++.h"
using namespace std;

long long dp[1010][1010];

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];
		x[i] += 501;
		y[i] += 501;
	}

	for (int i = 0; i < K; i++)
	{
		int ax, ay, w, h, d, bx, by;
		cin >> ax >> ay >> w >> h >> d;
		ax += 501;
		ay += 501;
		bx = min(1005, ax + w + 1);
		by = min(1005, ay + h + 1);
		dp[ay][ax] += d;
		dp[ay][bx] -= d;
		dp[by][ax] -= d;
		dp[by][bx] += d;
	}

	for (int i = 1; i <= 1005; i++)
	{
		for (int j = 1; j <= 1005; j++)
		{
			dp[i][j] += dp[i][j - 1];
		}
	}

	for (int j = 1; j <= 1005; j++)
	{
		for (int i = 1; i <= 1005; i++)
		{
			dp[i][j] += dp[i - 1][j];
		}

	}

	long long ans = 0;
	for (int i = 0; i < N; i++)
	{
		ans += max(0ll, hp[i] - dp[y[i]][x[i]]);
	}
	cout << ans << endl;
	cin >> ans;
}