#!/usr/bin/env python3.8
# %%
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
import numpy as np

# %%
N, K = map(int, readline().split())
data = np.array(read().split(), np.int64)
XYHP = data[: 3 * N]
AAWHD = data[3 * N:]
X = XYHP[::3]
Y = XYHP[1::3]
HP = XYHP[2::3]
AX = AAWHD[::5]
AY = AAWHD[1::5]
W = AAWHD[2::5]
H = AAWHD[3::5]
D = AAWHD[4::5]


# %%
X += 501
Y += 501
AX += 501
AY += 501


# %%
U = 1010
damage = np.zeros((U, U), np.int64)
AX2 = np.minimum(U - 1, AX + W + 1)
AY2 = np.minimum(U - 1, AY + H + 1)
np.add.at(damage, (AX, AY), D)
np.add.at(damage, (AX2, AY), -D)
np.add.at(damage, (AX, AY2), -D)
np.add.at(damage, (AX2, AY2), D)
np.cumsum(damage, out=damage, axis=0)
np.cumsum(damage, out=damage, axis=1)


# %%
answer = np.maximum(0, HP - damage[X, Y]).sum()
print(answer)