#include "bits/stdc++.h"
using namespace std;
#define int long long
#define REP(i, n) for (int i = 0; i < (int)n; ++i)
#define RREP(i, n) for (int i = (int)n - 1; i >= 0; --i)
#define FOR(i, s, n) for (int i = s; i < (int)n; ++i)
#define RFOR(i, s, n) for (int i = (int)n - 1; i >= s; --i)
#define ALL(a) a.begin(), a.end()
#define IN(a, x, b) (a <= x && x < b)
template<class T>istream&operator >>(istream&is,vector<T>&vec){for(T&x:vec)is>>x;return is;}
template<class T>inline void out(T t){cout << t << "\n";}
template<class T,class... Ts>inline void out(T t,Ts... ts){cout << t << " ";out(ts...);}
template<class T>inline bool CHMIN(T&a,T b){if(a > b){a = b;return true;}return false;}
template<class T>inline bool CHMAX(T&a,T b){if(a < b){a = b;return true;}return false;}
constexpr int INF = 1e18;

template <typename T>
struct SegmentTree{
  using F = function<T(T,T)>;
  int n;
  F f;
  T ti;
  vector<T> dat;

  SegmentTree(){}
  SegmentTree(F f,T ti):f(f),ti(ti){}

  void init(int n_){
	n=1;
	while(n<n_) n<<=1;
	dat.assign(n<<1,ti);
  }

  void build(const vector<T> &v){
	int n_=v.size();
	init(n_);
	for(int i=0;i<n_;i++) dat[n+i]=v[i];
	for(int i=n-1;i;i--)
	  dat[i]=f(dat[(i<<1)|0],dat[(i<<1)|1]);
  }

  void set_val(int k,T x){
	dat[k+=n]=x;
	while(k>>=1)
	  dat[k]=f(dat[(k<<1)|0],dat[(k<<1)|1]);
  }

  T query(int a,int b){
	if(a>=b) return ti;
	T vl=ti,vr=ti;
	for(int l=a+n,r=b+n;l<r;l>>=1,r>>=1) {
	  if(l&1) vl=f(vl,dat[l++]);
	  if(r&1) vr=f(dat[--r],vr);
	}
	return f(vl,vr);
  }

  template<typename C>
  int find(int st,C &check,T &acc,int k,int l,int r){
	if(l+1==r){
	  acc=f(acc,dat[k]);
	  return check(acc)?k-n:-1;
	}
	int m=(l+r)>>1;
	if(m<=st) return find(st,check,acc,(k<<1)|1,m,r);
	if(st<=l&&!check(f(acc,dat[k]))){
	  acc=f(acc,dat[k]);
	  return -1;
	}
	int vl=find(st,check,acc,(k<<1)|0,l,m);
	if(~vl) return vl;
	return find(st,check,acc,(k<<1)|1,m,r);
  }

  template<typename C>
  int find(int st,C &check){
	T acc=ti;
	return find(st,check,acc,1,0,n);
  }
  //アウトの条件を渡す
};

template< typename T >
struct Compress {
  vector< T > xs;

  Compress() = default;

  Compress(const vector< T > &vs) {
	add(vs);
  }

  Compress(const initializer_list< vector< T > > &vs) {
	for(auto &p : vs) add(p);
  }

  void add(const vector< T > &vs) {
	copy(begin(vs), end(vs), back_inserter(xs));
  }

  void add(const T &x) {
	xs.emplace_back(x);
  }

  void build() {
	sort(begin(xs), end(xs));
	xs.erase(unique(begin(xs), end(xs)), end(xs));
  }

  vector< int > get(const vector< T > &vs) const {
	vector< int > ret;
	transform(begin(vs), end(vs), back_inserter(ret), [&](const T &x) {
	  return lower_bound(begin(xs), end(xs), x) - begin(xs);
	});
	return ret;
  }

  int get(const T &x) const {
	return lower_bound(begin(xs), end(xs), x) - begin(xs);
  }

  const T &operator[](int k) const {
	return xs[k];
  }
};

signed main(){
	int N;
	cin >> N;
	vector<int>a(N), b(N);
	cin >> a >> b;
	if(a[0] != b[0] || a.back() != b.back()) {
		out(-1);
		return 0;
	}

	vector<int>aa(N - 1), bb(N - 1);
	map<int, int> mp;
	map<pair<int,int>, int> idx;
	REP(i, N - 1) {
		aa[i] = a[i + 1] ^ a[i];
		bb[i] = b[i + 1] ^ b[i];
	}
	{
		auto x = aa;
		auto y = bb;
		sort(ALL(x));
		sort(ALL(y));
		if(x != y) {
			out(-1);
			return 0;
		}
	}

	REP(i, N - 1) {
		idx[{aa[i], mp[aa[i]]++}] = i;
	}
	mp.clear();
	vector<int>v(N - 1);
	REP(i, N - 1) {
		v[i] = idx[{bb[i], mp[bb[i]]++}];
	}

	SegmentTree<int> seg([](int a, int b) {return a + b;}, 0ll);
	seg.build(vector<int>(N - 1));
	int ans = 0;
	REP(i, N - 1) {
		ans += seg.query(v[i], N - 1);
		seg.set_val(v[i], 1);
	}
	out(ans);
}