from collections import defaultdict
N,M=map(int,input().split())
A=list(map(int,input().split()))
B=list(map(int,input().split()))
C=list(map(int,input().split()))
cum=[0]
for i in C:
    cum.append(cum[-1]+i)
before=defaultdict(lambda:-1)
before[A[0]]=0
ans=[0]*(N+1)
neg=0
for i in range(N-1):
    neg+=B[i%M]
    ans[i+1]=ans[before[A[i+1]-neg]]+cum[i+1]-cum[before[A[i+1]-neg]+1]
    before[A[i+1]-neg]=max(before[A[i+1]-neg],i+1)
fin=ans[-2]
for i in range(N):
    fin=min(fin,ans[i]+cum[-1]-cum[i+1])
print(fin)