#include <bits/stdc++.h>
using namespace std;
using i64 = int64_t;
using vi = vector<i64>;
using vvi = vector<vi>;

int main() {
    int n, k;
    cin >> n >> k;

    vvi b(1010, vi(1010));
    for (int i = 0; i < n; i++) {
        int x, y, h;
        cin >> x >> y >> h;
        x += 500;
        y += 500;
        b[x][y] += h;
        b[x + 1][y] -= h;
        b[x][y + 1] -= h;
        b[x + 1][y + 1] += h;
    }
    for (int i = 0; i < k; i++) {
        int x, y, h, w, d;
        cin >> x >> y >> h >> w >> d;
        x += 500;
        y += 500;
        b[x][y] -= d;
        if (x + h + 1 < 1010) {
            b[x + h + 1][y] += d;
        }
        if (y + w + 1 < 1010) {
            b[x][y + w + 1] += d;
        }
        if (x + h + 1 < 1010 && y + w + 1 < 1010) {
            b[x + h + 1][y + w + 1] -= d;
        } 
    }
    for (int i = 0; i < 1010; i++) {
        for (int j = 0; j < 1010 - 1; j++) {
            b[i][j + 1] += b[i][j];
        }
    }
    for (int i = 0; i < 1010 - 1; i++) {
        for (int j = 0; j < 1010; j++) {
            b[i + 1][j] += b[i][j];
        }
    }

    i64 cnt = 0;
    for (int i = 0; i < 1010; i++) {
        for (int j = 0; j < 1010; j++) {
            if (b[i][j] > 0) {
                cnt += b[i][j];
            }
        }
    }
    cout << cnt << endl;
}