n, k = map(int, input().split())

x = []
y = []
hp = []
for i in range(n):
    xi, yi, hpi = map(int, input().split())
    x.append(xi)
    y.append(yi)
    hp.append(hpi)

ax = []
ay = []
w = []
h = []
d = []
for i in range(k):
    axi, ayi, wi, hi, di = map(int, input().split())
    ax.append(axi)
    ay.append(ayi)
    w.append(wi)
    h.append(hi)
    d.append(di)
    
for i in range(k):
    for j in range(n):
        if (ax[i] <= x[j] <= (ax[i] + w[i])) and (ay[i] <= y[j] <= (ay[i] + h[i])):
            hp[j] -= d[i]
            if hp[j] < 0:
                hp[j] = 0
ans = 0
for i in range(n):
    ans += hp[i]
         
print(ans)