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
di = defaultdict(int)
for i in range(N):
	di[A[i]-cum] += C[i]
	cum += B[i%M]
print(sum(C)-max(di.values()))