import sys
input = sys.stdin.readline

N, K = map(int, input().split())
XYHP = [tuple(map(int, input().split())) for _ in range(N)]
field = [[0] * 1002 for _ in range(1002)]

for _ in range(K):
    AX, AY, W, H, D = map(int, input().split())
    AX += 500
    AY += 500
    field[AX][AY] += D
    field[min(1001, AX+W+1)][AY] -= D
    field[AX][min(1001, AY+H+1)] -= D
    field[min(1001, AX+W+1)][min(1001, AY+H+1)] += D

for i in range(1, 1001):
    for j in range(1, 1001):
        field[i][j] = field[i][j-1]+field[i-1][j]-field[i-1][j-1]+field[i][j]

ans = 0

for X, Y, HP in XYHP:
    ans += max(0, HP-field[X+500][Y+500])

print(ans)