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

#define DEBUG(x) cout<<#x<<": "<<x<<endl;
#define DEBUG_VEC(v) cout<<#v<<":";for(int i=0;i<v.size();i++) cout<<" "<<v[i]; cout<<endl

typedef long long ll;
#define vi vector<int>
#define vl vector<ll>
#define vii vector< vector<int> >
#define vll vector< vector<ll> >
#define vs vector<string>
#define pii pair<int,int>
#define pis pair<int,string>
#define psi pair<string,int>
#define pll pair<ll,ll>
#define fi first
#define se second
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define rep1(i,n) for(int i=1;i<=(int)(n);i++)
#define all(c) c.begin(),c.end()
const int inf = 1000000001;
const ll INF = 2e18;
const ll MOD = 1000000007;
const ll mod = 1000000009;
const double pi = 3.14159265358979323846;
#define Sp(p) cout<<setprecision(15)<< fixed<<p<<endl;
int dx[4] = { 1,0,-1,0 }, dy[4] = { 0,1,0,-1 };
int dx2[8] = { 1,1,0,-1,-1,-1,0,1 }, dy2[8] = { 0,1,1,1,0,-1,-1,-1 };



int main() {
	int n, k;
	cin >> n >> k;
	vll sum(1510, vl(1510));
	rep(i, n) {
		int x, y, h;
		cin >> x >> y >> h;
		x += 500; y += 500;
		sum[y][x + 1] += h;
		sum[y][x + 2] += -h;
	}
	/*
	for (int i = 490; i <= 510; i++) {
		for (int j = 490; j <= 510; j++) {
			cout << sum[i][j] << " ";
		}
		cout << endl;
	}
	cout << endl;
	//*/
	rep(i, k) {
		int x, y, w, h, d;
		cin >> x >> y >> w >> h >> d;
		x += 500; y += 500;
		for (int j = y; j <= y + h; j++) {
			sum[j][x + 1] += -d;
			sum[j][x + w + 2] += d;
		}
	}
	/*
	for (int i = 490; i <= 510; i++) {
		for (int j = 490; j <= 510; j++) {
			cout << sum[i][j] << " ";
		}
		cout << endl;
	}
	cout << endl;
	//*/
	rep(i,1010) {
		rep1(j,1010) {
			sum[i][j] += sum[i][j - 1];
		}
	}
	int ans = 0;
	rep(i,1010) {
		rep(j,1010) {
			if (sum[i][j] >= 0) {
				ans += sum[i][j];
			}
		}
	}
	cout << ans << endl;
}