n, k = map(int, input().split())
enemy = [list(map(int, input().split())) for _ in range(n)]
dp = [[0] * 2000 for _ in range(2000)]
plus = 600
for _ in range(k):
    x1, y1, w, h, d = map(int, input().split())
    x1 += plus
    y1 += plus
    x2 = x1 + w + 1
    y2 = y1 + h + 1
    dp[x1][y1] += d
    dp[x1][y2] -= d
    dp[x2][y1] -= d
    dp[x2][y2] += d
for i in range(1700):
    for j in range(1700):
        dp[i][j + 1] += dp[i][j]
for i in range(1700):
    for j in range(1700):
        dp[i + 1][j] += dp[i][j]

ans = 0
for x, y, hp in enemy:
    x += plus
    y += plus
    ans += max(0, hp - dp[x][y])
print(ans)