#include<bits/stdc++.h>
using namespace std;
#include<atcoder/all>
using namespace atcoder;
using ll = long long;
ll n,k;
ll sum[1505][1505];
vector<ll> x,y,hp,ax,ay,w,h,d;

void solve(){
	for(ll i = 0;i<k;i++){
		//cerr<<d[i]<<endl;
		sum[ax[i]+500][ay[i]+500] -=d[i];
		sum[ax[i]+500+w[i]+1][ay[i]+500] +=d[i];
		sum[ax[i]+500][ay[i]+500+h[i]+1] +=d[i];
		sum[ax[i]+500+w[i]+1][ay[i]+500+h[i]+1] -= d[i];
	}
	for(ll i = 0;i<1505-1;i++){
		for(ll j = 0;j<1505;j++){
			sum[i+1][j] += sum[i][j];
		}
	}
	for(ll i = 0;i<1505;i++){
		for(ll j = 0;j<1505-1;j++){
			sum[i][j+1] += sum[i][j];
		}
	}
	ll ans = 0;
	for(ll i = 0;i<n;i++){
		ans += max(0ll,sum[x[i]+500][y[i]+500]+hp[i]);
		//cout<<sum[x[i]+500][y[i]+500]<<' '<<hp[i]<<endl;
	}
	/*
	for(int i = 490;i<=510;i++){
		for(int j = 490;j<=510;j++){
			cout<<sum[i][j]<<' ';
		}
		cout<<endl;
	}
	*/
	cout<<ans<<endl;
}

signed main(){
	cin.tie(nullptr);
	ios::sync_with_stdio(false);
	cin >> n >> k;
	x = y = hp = vector<ll>(n);
	ax = ay = w = h = d = vector<ll>(k);
	for(ll i = 0;i<n;i++){
		cin >> x[i] >> y[i] >> hp[i];
	}
	for(ll i = 0;i<k;i++){
		cin >> ax[i] >> ay[i] >> w[i] >> h[i]>>d[i]; 
	}
	solve();
}