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()))

E = [A[0]]
for i in range(1, N):
    E.append(B[(i-1)%M]+E[-1])

D = defaultdict(int)
for i in range(N):
    D[A[i]-E[i]] += C[i]

print(sum(C)-max(D.values()))