import sys


def input(): return sys.stdin.readline().rstrip()


def main():
    N, K = map(int, input().split())
    mob = [list(map(int, input().split())) for i in range(N)]
    attack = [list(map(int, input().split())) for i in range(K)]

    MAX = 500
    arr = [[0]*(3*MAX+2) for i in range(3*MAX+2)]

    for ax, ay, w, h, d in attack:
        arr[ax+w+MAX+1][ay+h+MAX+1] += d
        arr[ax+MAX][ay+h+MAX+1] -= d
        arr[ax+w+MAX+1][ay+MAX] -= d
        arr[ax+MAX][ay+MAX] += d

    for i in range(3*MAX+2):
        for j in range(1, 3*MAX+2):
            arr[i][j] += arr[i][j-1]

    for i in range(1, 3*MAX+2):
        for j in range(3*MAX+2):
            arr[i][j] += arr[i-1][j]

    ans = 0
    for x, y, hp in mob:
        hp -= arr[x+MAX][y+MAX]
        ans += max(hp, 0)

    print(ans)


if __name__ == '__main__':
    main()