import sys

sys.setrecursionlimit(10 ** 6)
p2D = lambda x: print(*x, sep="\n")
def MI(): return map(int, sys.stdin.readline().split())
def LI(): return list(map(int, sys.stdin.readline().split()))

def main():
    n, k = MI()
    ene = [LI() for _ in range(n)]
    t = [[0] * 1001 for _ in range(1001)]
    for _ in range(k):
        j, i, w, h, d = MI()
        i, j = i + 500, j + 500
        t[i][j] += d
        if i + h + 1 <= 1000 and j + w + 1 <= 1000: t[i + h + 1][j + w + 1] += d
        if i + h + 1 <= 1000: t[i + h + 1][j] -= d
        if j + w + 1 <= 1000: t[i][j + w + 1] -= d
    # p2D(t)
    for i in range(1001):
        ti = t[i]
        for j in range(1, 1001):
            ti[j] += ti[j - 1]
    for j in range(1001):
        for i in range(1, 1001):
            t[i][j] += t[i - 1][j]
    # p2D(t)
    ans = 0
    for j, i, hp in ene:
        i, j = i + 500, j + 500
        damage = t[i][j]
        if hp - damage > 0: ans += hp - damage
    print(ans)

main()