#include "bits/stdc++.h"
using namespace std;

#define REP(i, n) for(int i=0; i<(n); i++)
#define FOR(i, a, b) for(int i=(a);i<(b);i++)

#define MAX 2000
int N,K;
int M[MAX][MAX];
int P[MAX][MAX];

struct enemy { int x, y, hp; };

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

    vector<enemy> es(N);
    REP(i,N) {
        cin >> es[i].x >> es[i].y >> es[i].hp;
        es[i].x += 500;
        es[i].y += 500;
    }
    int x, y, W, H, D;
    REP(i,K) {
        cin >> x >> y >> W >> H >> D;
        x += 500;
        y += 500;
        REP(w,W+1) {
            M[x+w][y] += D;
            M[x+w][y+H+1] -= D;
        }
    }
    REP(x,MAX) {
        REP(y,MAX) {
            P[x][y] = M[x][y] + ((y > 0) ? P[x][y-1] : 0);
        }
    }
    int remain = 0;
    for (enemy e : es) {
        remain += max(0, e.hp - P[e.x][e.y]);
    }
    cout << remain << endl;
    return 0;
}