#include "bits/stdc++.h"
using namespace std;
#define FOR(i,j,k) for(int (i)=(j);(i)<(int)(k);++(i))
#define rep(i,j) FOR(i,0,j)
#define each(x,y) for(auto &(x):(y))
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define debug(x) cout<<#x<<": "<<(x)<<endl
#define smax(x,y) (x)=max((x),(y))
#define smin(x,y) (x)=min((x),(y))
#define MEM(x,y) memset((x),(y),sizeof (x))
#define sz(x) (int)(x).size()
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<ll> vll;

const int MA = 100001, R = 1510, OFF = 500;
int X[MA], Y[MA], HP[MA];
ll atk[R][R];

int main(){
    int N, K;
    cin >> N >> K;
    rep(i, N){
        scanf("%d%d%d", &X[i], &Y[i], &HP[i]);
        X[i] += OFF;
        Y[i] += OFF;
    }
    rep(i, K){
        int ax, ay, w, h, d;
        scanf("%d%d%d%d%d", &ax, &ay, &w, &h, &d);
        ax += OFF;
        ay += OFF;
        w++; h++;
        atk[ax][ay] += d;
        atk[ax + w][ay] -= d;
        atk[ax][ay + h] -= d;
        atk[ax + w][ay + h] += d;
    }
    rep(i, R - 1)rep(j, R)atk[i + 1][j] += atk[i][j];
    rep(i, R)rep(j, R - 1)atk[i][j + 1] += atk[i][j];
    ll ans = 0;
    rep(i, N){
        ll hp = HP[i] - atk[X[i]][Y[i]];
        if(hp > 0)ans += hp;
    }
    cout << ans << endl;
}