import sys; input = sys.stdin.buffer.readline
sys.setrecursionlimit(10**7)
from collections import defaultdict
con = 10 ** 9 + 7; INF = float("inf")

def getlist():
	return list(map(int, input().split()))

#処理内容
def main():
	N, K = getlist()
	table = [[0] * 1002 for i in range(1002)]
	for i in range(N):
		X, Y, HP = getlist()
		X += 500; Y += 500
		table[X][Y] += HP

	imostable = [[0] * 1002 for i in range(1002)]
	for i in range(K):
		X, Y, W, H, D = getlist()
		X += 500; Y += 500
		xp = min(X + W + 1, 1001)
		yp = min(Y + H + 1, 1001)
		imostable[X][Y] -= D
		imostable[xp][Y] += D
		imostable[X][yp] += D
		imostable[xp][yp] -= D

	# 二次元imos累積和
	for i in range(1002):
		for j in range(1001):
			imostable[i][j + 1] += imostable[i][j]

	for i in range(1001):
		for j in range(1002):
			imostable[i + 1][j] += imostable[i][j]

	# test = 0
	# for i in range(1002):
	# 	test += sum(imostable[i])
	# print(test)

	ans = 0
	for i in range(1001):
		for j in range(1001):
			ans += max(0, imostable[i][j] + table[i][j])

	print(ans)


if __name__ == '__main__':
	main()