class imos2D:
    def __init__(self, h, w):
        self.h = h
        self.w = w
        self.imos = [[0]*(w+1) for i in range(h+1)]
    def add(self, y0, x0, y1, x1, v):
        # add  [(y0,x0), (y1,x1)]
        self.imos[y0][x0] += v
        self.imos[y1+1][x1+1] += v
        self.imos[y0][x1+1] -= v
        self.imos[y1+1][x0] -= v

    def calc(self):
        for y in range(self.h+1):
            for x in range(self.w):
                self.imos[y][x+1] += self.imos[y][x]
        for x in range(self.w+1):
            for y in range(self.h):
                self.imos[y+1][x] += self.imos[y][x]

import sys
import io, os
input = io.BytesIO(os.read(0,os.fstat(0).st_size)).readline

n, k = map(int, input().split())
XY = []
for i in range(n):
    x, y, h = map(int, input().split())
    x += 500
    y += 500
    XY.append((x, y, h))
imos = imos2D(1550, 1550)
for i in range(k):
    ax, ay, w, h, d = map(int, input().split())
    ax += 500
    ay += 500
    imos.add(ax, ay, ax+w, ay+h, d)
imos.calc()
ans = 0
for x, y, h in XY:
    ans += max(0, h-imos.imos[x][y])
print(ans)