s = [[0] * 1002 for _ in range(1002)]
n, k = map(int, input().split())
enemies = [map(int, input().split()) for _ in range(n)]
for _ in range(k):
    ax, ay, w, h, d = map(int, input().split())
    ax += 500
    ay += 500
    bx = min(1001, ax + w + 1)
    by = min(1001, ay + h + 1)
    s[ax][ay] += d
    s[ax][by] -= d
    s[bx][ay] -= d
    s[bx][by] += d

for i in range(1002):
    now = 0
    for j in range(1002):
        now += s[i][j]
        s[i][j] = now

for j in range(1002):
    now = 0
    for i in range(1002):
        now += s[i][j]
        s[i][j] = now

ans = 0
for x, y, hp in enemies:
    x += 500
    y += 500
    ans += max(0, hp - s[x][y])
print(ans)