from collections import defaultdict

N,M=map(int,input().split())

P=list(map(int,input().split()))

S=[]
for _ in range(N):
    a,b=map(int,input().split())
    S.append((a,b))

T=[]
for j in range(M):
    c,d=map(int,input().split())
    T.append((c,d))

X=0
for s,t in [(1,1),(1,-1),(-1,1),(-1,-1)]:
    D=defaultdict(int)

    for i in range(N):
        a,b=S[i]
        for j in range(M):
            c,d=T[j]

            p=c-s*a; q=d-t*b
            D[(p<<32)^q]+=P[i]

    X=max(X,max(D.values()))

print(X)