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

INF=int(1e18)
dp=[INF for _ in range(N+1)]
dp[0]=0

for i in range(1,N+1):
    xor=A[i-1]
    for j in range(i-1,-1,-1):
        dp[i]=min(dp[i],dp[j]+X[i-1]-X[j]+xor)
        xor^=A[j-1]
print(dp[-1])