class fenwick_tree():
    n=1
    data=[0 for i in range(n)]
    def __init__(self,N):
        self.n=N
        self.data=[0 for i in range(N)]
    def add(self,p,x):
        assert 0<=p<self.n,"0<=p<n,p={0},n={1}".format(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 and l<=r and r<=self.n),"0<=l<=r<=n,l={0},r={1},n={2}".format(l,r,self.n)
        return self.sum0(r)-self.sum0(l)
    def sum0(self,r):
        s=0
        while(r>0):
            s+=self.data[r-1]
            r-=r&-r
        return s




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

if A[0] != B[0] or A[N-1] != B[N-1]:
    print(-1)
    exit()

A = [A[i+1]^A[i] for i in range(N-1)]
B = [B[i+1]^B[i] for i in range(N-1)]

if sorted(A) != sorted(B):
    print(-1)
    exit()


X = {}
for i, b in enumerate(B):
    if b in X:
        X[b].append(i)
    else:
        X[b] = [i]
cur = {x:0 for x in X}

Z = []
for a in A:
    Z.append(X[a][cur[a]])
    cur[a] += 1



ft = fenwick_tree(N-1)
ans = 0
for z in Z[::-1]:
    ans += ft.sum0(z)
    ft.add(z, 1)
print(ans)