import heapq
import sys
input = sys.stdin.readline
N = int(input())
X = list(map(int, input().split()))
A = list(map(int, input().split()))
dp1 = [[0 for _ in range(N)] for _ in range(N)]
for i in range(N):
    dp1[i][i] = A[i]
for i in range(N):
    for j in range(i+1, N):
        dp1[i][j] = dp1[i][j-1] ^ A[j]
#print(dp)
INF = sum(A)
dp3 = [INF for _ in range(N)]
stack = [(0, 0)]
while stack:
    sco, i = heapq.heappop(stack)
    for j in range(i, N):
        if sco+dp1[i][j]+(X[j]-X[i]) < dp3[j]:
            dp3[j] = sco+dp1[i][j]+(X[j]-X[i])
            heapq.heappush(stack, (dp3[j], j+1))
print(dp3[-1])