#pragma GCC target("avx2,avx")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
//using namespace __gnu_pbds;
//using i128 = __int128_t;
using ll = long long;
using ull = unsigned long long;
using pii = pair<int, int>;
using pll = pair<long long, long long>;
#define rep(i, n) for(int i = 0; i < (n); ++i)
#define all(x) (x).begin(),(x).end()
#define SZ(x) ((int)(x).size())
constexpr char ln = '\n';
template<class T1, class T2> inline bool chmax(T1 &a, T2 b) {if (a < b) {a = b; return true;} return false;}
template<class T1, class T2> inline bool chmin(T1 &a, T2 b) {if (a > b) {a = b; return true;} return false;}
inline int topbit(int x) {return x == 0 ? -1 : 31-__builtin_clz(x);}
inline int topbit(long long x) {return x == 0 ? -1 : 63-__builtin_clzll(x);}
inline int botbit(int x) {return x == 0 ? 32 : __builtin_ctz(x);}
inline int botbit(long long x) {return x == 0 ? 64 : __builtin_ctzll(x);}
inline int popcount(int x) {return __builtin_popcount(x);}
inline int popcount(long long x) {return __builtin_popcountll(x);}
inline void print() {cout << "\n";}
template<class T>
inline void print(const vector<T> &v) {
    for (auto itr = v.begin(); itr != v.end(); ++itr) cout << *itr << " ";
    print();
}
template<class T, class... Args>
inline void print(const T &x, const Args &... args) {
    cout << x << " ";
    print(args...);
}
#ifdef MINATO_LOCAL
#define dump(x) cerr << __LINE__ << " : " << #x << " = " << (x) << endl;
inline void debug() {cerr << endl;}
template<class T>
inline void debug(const vector<T> &v) {
    for (auto itr = v.begin(); itr != v.end(); ++itr) cerr << *itr << " ";
    debug();
}
template<class T, class... Args>
inline void debug(const T &x, const Args &... args) {
    cerr << x << " ";
    debug(args...);
}
#else
#define dump(x) void(0)
inline void debug() {}
template<class T> inline void debug(const vector<T> &v) {}
template<class T, class... Args> inline void debug(const T &x, const Args &... args) {}
#endif
struct Fast_ios {Fast_ios() {cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(20);};} fast_ios;
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

template<typename T>
struct BinaryIndexedTree {
    int N;
    vector<T> data;

    BinaryIndexedTree(){}
    BinaryIndexedTree(int N) : N(N), data(N+1,0) {}

    // [0,k) (0-indexed) a[0] + … + a[k-1]
    T sum(int k) {
        T ret = 0;
        for(; k > 0; k -= k & -k) ret += data[k];
        return ret;
    }

    // [l,r) (0-indexed) a[l] + …　+ a[r-1]
    T sum(int l, int r) {
        if (l >= r) return 0;
        T vl = sum(l);
        T vr = sum(r);
        return vr - vl;
    }
    // (0-indexed) a[k] += x;
    void add(int k, T x) {
        for(++k; k <= N; k += k & -k) data[k] += x;
    }

    // (0-indexed)
    int lowerbound(T x) {
        int k = 1;
        int ret = 0;
        while ((k<<1) <= N) k <<= 1;
        while (k) {
            if (ret + k <= N && data[ret+k] < x) {
                x -= data[ret+k];
                ret += k;
            }
            k >>= 1;
        }
        return ret;
    }

    // (0-indexed)
    int upperbound(T x) {return lowerbound(x+1);}
};

int main() {
    int N; cin >> N;
    vector<int> A(N),B(N);
    rep(i,N) cin >> A[i];
    rep(i,N) cin >> B[i];

    auto C = A;
    multiset<int> dic;
    dic.emplace(C[0]);
    for (int i = 1; i < N; i++) {
        C[i] = A[i-1]^A[i];
        dic.emplace(C[i]);
    }

    vector<int> D(N);
    if (A[0]!=B[0]) {
        cout << -1 << ln;
        return 0;
    }
    D[0] = C[0];
    int tmp = C[0];
    for (int i = 1; i < N; i++) {
        int val = B[i]^tmp;
        if (dic.find(val)==dic.end()) {
            cout << -1 << ln;
            return 0;
        }
        D[i] = val;
        tmp ^= val;
        dic.erase(dic.find(val));
    }
    map<int, vector<int>> mp;
    for (int i = N-1; i >= 0; i--) {
        mp[C[i]].emplace_back(i);
    }
    vector<int> E(N);
    rep(i,N) {
        E[i] = mp[D[i]].back();
        mp[D[i]].pop_back();
    }

    BinaryIndexedTree<int> BIT(N);
    ll ans = 0;
    rep(i,N) {
        ans += BIT.sum(E[i],N);
        BIT.add(E[i],1);
    }

    cout << ans << ln;
}