import sys
input = sys.stdin.readline

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

DP=[1<<60]*(N+1)
DP[0]=0

for i in range(N):
    #print(DP)
    now=A[i]
    DIS=0
    DP[i+1]=min(DP[i+1],DP[i]+now+DIS)
    for j in range(i+1,N):
        now^=A[j]
        DIS+=X[j]-X[j-1]

        DP[j+1]=min(DP[j+1],DP[i]+now+DIS)

print(DP[-1])