#include <bits/stdc++.h>
using namespace std;
#ifndef ONLINE_JUDGE
#include "debug.h"
#else
#define debug(...) 417
#endif
using i64 = int64_t;
using u32 = uint32_t;
using u64 = uint64_t;
using f64 = double_t;
using i128 = __int128_t;
int main() {
  cin.tie(nullptr)->sync_with_stdio(false);
  cout << fixed << setprecision(20);
  int n;
  cin >> n;
  vector<int> a(n), b(n);
  for (int& ai : a) { cin >> ai; }
  for (int& bi : b) { cin >> bi; }
  map<int, int> mp;
  for (int i = 0; i < n; i += 1) {
    mp[a[i]] += 1;
    mp[b[i]] -= 1;
  }
  for (auto [x, y] : mp) {
    if (y) {
      cout << "-1";
      return 0;
    }
  }
  int ans = -1;
  auto f = [&](vector<int> a, vector<int> b) {
    for (int i = 0; i < n; i += 1) {
      vector<int> d;
      for (int j = 0; j < n; j += 1) {
        if (a[j] != b[j]) { d.push_back(j); }
      }
      int pans = -1;
      if (d.size() == 0) { pans = i * (n - 1); }
      if (d.size() == 2) {
        int k = d[1] - d[0];
        pans = i * (n - 1) + min(k, n - k);
      }
      if (pans != -1) {
        if (ans == -1 or ans > pans) { ans = pans; }
      }
      ranges::rotate(a, a.begin() + 1);
    }
  };
  f(a, b);
  ranges::reverse(a);
  ranges::reverse(b);
  f(a, b);
  cout << ans;
}