## https://yukicoder.me/problems/no/2866


def main():
    N, M =  map(int, input().split())
    A = list(map(int, input().split()))
    B = list(map(int, input().split()))
    C = list(map(int, input().split()))

    b = 0
    a_map = {}
    for i in range(N):
        a = A[i] - b
        if a not in a_map:
            a_map[a] = 0
        a_map[a] += C[i]

        b += B[i % M]
    
    sum_c = sum(C)
    max_c = max(a_map.values())
    print(sum_c - max_c)



if __name__ == "__main__":
    main()