from collections import *

class Fenwick_Tree:
    def __init__(self, n):
        self._n = n
        self.data = [0] * n
 
    def add(self, p, x):
        assert 0 <= p < self._n
        p += 1
        while p <= self._n:
            self.data[p - 1] += x
            p += p & -p
 
    def sum(self, l, r):
        assert 0 <= l <= r <= self._n
        return self._sum(r) - self._sum(l)
 
    def _sum(self, r):
        s = 0
        while r > 0:
            s += self.data[r - 1]
            r -= r & -r
        return s
    
    def get(self, k):
        k += 1
        x, r = 0, 1
        while r < self._n:
            r <<= 1
        len = r
        while len:
            if x + len - 1 < self._n:
                if self.data[x + len - 1] < k:
                    k -= self.data[x + len - 1]
                    x += len
            len >>= 1
        return x

N = int(input())
A = list(map(int, input().split()))
B = list(map(int, input().split()))
DA, DB = [], []
for i in range(N - 1):
    DA.append(A[i+1]^A[i])
    DB.append(B[i+1]^B[i])

if Counter(DA) != Counter(DB):
    print(-1)
    exit()

ind = defaultdict(list)
C = []
for i in range(N-1):
    ind[DA[i]].append(i)

for k, v in ind.items():
    ind[k].reverse()

for i in range(N-1):
    C.append(ind[DB[i]].pop())

T = Fenwick_Tree(N - 1)
ans = 0
for i in range(N - 1):
    ans += T.sum(C[i], N - 1)
    T.add(C[i], 1)

print(ans)