n=int(input())
x=list(map(int,input().split()))
a=list(map(int,input().split()))+[0]
for i in range(n):
  a[i]^=a[i-1]
q=[0]*(n+1)
for i in range(n):
  q[i]=min(q[j-1]+(x[i]-x[j])+(a[i]^a[j-1]) for j in range(i+1))
print(q[n-1])