#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <queue>
#include <set>
#include <map>
using namespace std;

#define FOR(i, s, e) for (int i = (s); i <= (e); i++)

typedef long long ll;

ll N;
ll K;
int X[100000],Y[100000],HP[100000];

ll imos[1600][1600];

int main()
{
    cin >> N >> K;

    FOR(i,0,N - 1)
    {
        cin >> X[i] >> Y[i] >> HP[i];
        X[i] += 500;
        Y[i] += 500;
    }

    int ax,ay,w,h,d;

    FOR(i,0,K - 1)
    {
        cin >> ax >> ay >> w >> h >> d;
        ax += 500;
        ay += 500;
        imos[ax][ay] += d;
        imos[ax][ay + h + 1] += -d;
        imos[ax + w + 1][ay] += -d;
        imos[ax + w + 1][ay + h + 1] += d;
    }

    FOR(i,0,1000)
    {
        FOR(j,0,1000)
        {
            imos[i][j + 1] += imos[i][j];
        }
    }
    FOR(j,0,1000)
    {
        FOR(i,0,1000)
        {
            imos[i + 1][j] += imos[i][j];
        }
    }

    ll result = 0;

    FOR(i,0,N - 1)
    {
        result += max(0LL,HP[i] - imos[X[i]][Y[i]]);
    }

    cout << result << endl;
    return 0;
}