I,R=input,range
J=lambda:list(map(int,I().split()))
N=int(I())
X=J()
A=J()
D=[0]*N
a=D[0]=A[0]
for i in R(1,N):
	for j in R(i):D[j]+=(A[j]^A[i])-A[j]+X[i]-X[i-1]
	a+=A[i]
	D[i]=a
	for j in R(i):
		A[j]^=A[i]
		a=min(a,D[j])
print(a)