import sys
input=sys.stdin.readline

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

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

S=[]
a=[0]*N; b=[0]*N
for i in range(N):
    a[i],b[i]=map(int,input().split())

T=[]
c=[0]*M; d=[0]*M
for j in range(M):
    c[j],d[j]=map(int,input().split())

msk=1<<32
X=0
for s,t in [(1,1),(1,-1),(-1,1),(-1,-1)]:
    D={}
    for i in range(N):
        for j in range(M):
            u=c[j]-s*a[i]; v=d[j]-t*b[i]
            g=u*msk+v
            D[g]=D.get(g,0)+P[i]
    X=max(X,max(D.values()))

print(X)