N, K = map(int, input().split())
XY = [list(map(int, input().split())) for _ in range(N)]
AXY = [list(map(int, input().split())) for _ in range(K)]
r = 500 + 1
r2 = r * 2 + 2
M = [[0] * r2 for _ in range(r2)]
for x, y, w, h, d in AXY:
    x += r
    y += r
    M[x - 1][y - 1] += d
    if x + w < r2:
        M[x + w][y - 1] -= d
        if y + h < r2:
            M[x + w][y + h] += d
    if y + h + 1 < r2:
        M[x - 1][y + h] -= d
for i in range(r2):
    for j in range(r2):
        if i > 0:
            M[i][j] += M[i - 1][j]
            if j > 0:
                M[i][j] -= M[i - 1][j - 1]
        if j > 0:
            M[i][j] += M[i][j - 1]

ans = 0
for x, y, h in XY:
    ans += max(0, h - M[x + r - 1][y + r -1])
print(ans)