#include <bits/stdc++.h>

using namespace std;

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

  vector<int> x(N), y(N), hp(N);
  for (int i = 0; i < N; ++i) {
    cin >> x[i] >> y[i] >> hp[i];

    x[i] += 501;
    y[i] += 501;
  }

  vector<vector<int>> sum(1005, vector<int>(1005, 0));
  for (int i = 0; i < K; ++i) {
    int ax, ay, w, h, d;
    cin >> ax >> ay >> w >> h >> d;

    ax += 501;
    ay += 501;

    int gx = min(ax + w + 1, 1004), gy = min(ay + h + 1, 1004);

    sum[ax][ay] += d;
    sum[gx][ay] -= d;
    sum[ax][gy] -= d;
    sum[gx][gy] += d;
  }

  for (int i = 1; i < 1005; ++i) {
    for (int j = 1; j < 1005; ++j) {
      sum[i][j] += sum[i-1][j] + sum[i][j-1] - sum[i-1][j-1];
    }
  }

  int ans = 0;
  for (int i = 0; i < N; ++i)
    ans += max(0, hp[i] - sum[x[i]][y[i]]);

  cout << ans << endl;
  return 0;
}