import sys
readline = sys.stdin.readline

h,w,n,m = map(int,readline().split())
tulra = [list(map(int,readline().split())) for _ in range(n)]

b = [[0]*(w+2) for _ in range(h+2)]
for _ in range(m):
    x,y,d,c = map(int,readline().split())
    lx,rx,ly,ry = max(1,x-d), min(h,x+d)+1, max(1,y-d), min(w,y+d)+1
    b[lx][ly] += c
    b[rx][ly] -= c
    b[lx][ry] -= c
    b[rx][ry] += c
for _ in range(2):
    for i in range(h+2):
        for j in range(w+1):
            b[i][j+1] += b[i][j]
    for j in range(w+2):
        for i in range(h+1):
            b[i+1][j] += b[i][j]

print(sum(int(a > b[t-1][l-1] - b[u][l-1] - b[t-1][r] + b[u][r]) for t,u,l,r,a in tulra))