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

using ll = long long;

int main(void) {
	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] += 500, Y[i] += 500;
	
	vector v(1002, vector<int>(1002, 0));
	for(int i = 0; i < K; ++i) {
		int x, y, w, h, d;
		cin >> x >> y >> w >> h >> d, x += 500, y += 500;
		
		int nx = min(1000, x + w), ny = min(1000, y + h);
		v[nx + 1][ny + 1] += d, v[x][ny + 1] -= d, v[nx + 1][y] -= d, v[x][y] += d;
	}
	
	for(int i = 0; i < 1001; ++i) for(int j = 0; j < 1002; ++j) v[i + 1][j] += v[i][j];
	for(int i = 0; i < 1002; ++i) for(int j = 0; j < 1001; ++j) v[i][j + 1] += v[i][j];
	
	ll ans = 0;
	for(int i = 0; i < N; ++i) ans += max(0, HP[i] - v[X[i]][Y[i]]);
	
	cout << ans << "\n";
	
	return 0;
}