#include <stdio.h>
#include <bits/stdc++.h>
#include <atcoder/all>
using namespace atcoder;
using mint = modint998244353;
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 1000000

int imos[1600][1600];

int main(){
	
	int N,K;
	cin>>N>>K;
	
	vector<int> x(N),y(N),hp(N);
	rep(i,N){
		cin>>x[i]>>y[i]>>hp[i];
		x[i] += 502;
		y[i] += 502;
	}
	
	rep(i,K){
		int ax,ay,w,h,d;
		cin>>ax>>ay>>w>>h>>d;
		ax += 502,ay += 502;
		imos[ax][ay] += d;
		imos[ax][ay+h+1] -= d;
		imos[ax+w+1][ay] -= d;
		imos[ax+w+1][ay+h+1] += d;
	}
	
	rep(i,1599){
		rep(j,1600){
			imos[i+1][j] += imos[i][j];
		}
	}
	rep(i,1600){
		rep(j,1599){
			imos[i][j+1] += imos[i][j];
		}
	}
	
	int ans = 0;
	rep(i,N){
		ans += max(0,hp[i] - imos[x[i]][y[i]]);
	}
	
	cout<<ans<<endl;
	
	return 0;
}