N,M=map(int, input().split())
A=list(map(int, input().split()))
B=list(map(int, input().split()))
C=list(map(int, input().split()))
D=[0]
for i in range(N-1):
  D.append(D[-1]+B[i%M])

E={};c=0
for i in range(N):
  d=D[i]-A[i]
  if d not in E:
    E[d]=0
  E[d]+=C[i]
  c=max(c,E[d])
print(sum(C)-c)