N = int(input())
X = list(map(int, input().split()))
A = list(map(int, input().split()))
# iから開始するときのコスト
dp = [10**10] * (N + 1)
dp[0] = 0
for i in range(N):
    tmp = 0
    for j in range(i, N):
        tmp ^= A[j]
        dp[j + 1] = min(dp[j + 1], dp[i] + (X[j] - X[i]) + tmp)
print(dp[-1])