## https://yukicoder.me/problems/no/2656

MAX_VALUE = 10 ** 18

def main():
    N = int(input())
    X = list(map(int, input().split()))
    A = list(map(int, input().split()))

    cum_x_list = [0] * (N + 1)
    cum_x = 0
    for i in range(N):
        cum_x += X[i]
        cum_x_list[i + 1] = cum_x

    dp = [MAX_VALUE] * (N + 1)
    dp[0] = 0
    for i in range(N):
        a = 0
        for j in reversed(range(i + 1)):
            a ^= A[j]

            num = i - j + 1
            x = num // 2 + j
            x_left = x - j + 1
            x_right = i - x
            value_left = x_left * X[x] - (cum_x_list[x + 1] - cum_x_list[j])
            value_right = (cum_x_list[i + 1] - cum_x_list[x + 1]) - x_right * X[x]
            cost =  value_left + value_right
            dp[i + 1] = min(dp[i + 1], dp[j] + a + cost)
    print(dp[-1])






if __name__ == "__main__":
    main()