#include <bits/stdc++.h>
using namespace std;
using lint = long long;
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#define rep(i, n) for (int i = 0; i < (int)(n); ++i)

template <typename T> lint gcd(T a, T b) {return b?gcd(b, a%b):a;}
template <typename T> lint lcm(T a, T b) {return a * b / gcd(a, b);};
template <typename T> inline void chmin(T &a, const T& b){if(a>b) a=b;}
template <typename T> inline void chmax(T &a, const T& b){if(a<b) a=b;}

struct IoSetup{
    IoSetup(){
      ios::sync_with_stdio(false);
      cin.tie(0);
      cout << fixed << setprecision(20);
      cerr << fixed << setprecision(20);
    }
} IoSetup;


template <typename A, typename B>
string to_string(pair<A, B> p);

template <typename A, typename B, typename C>
string to_string(tuple<A, B, C> p);

template <typename A, typename B, typename C, typename D>
string to_string(tuple<A, B, C, D> p);

string to_string(const string& s) {
  return '"' + s + '"';
}

string to_string(const char* s) {
  return to_string((string) s);
}

string to_string(bool b) {
  return (b ? "true" : "false");
}

string to_string(vector<bool> v) {
  bool first = true;
  string res = "{";
  for (int i = 0; i < static_cast<int>(v.size()); i++) {
    if (!first) {
      res += ", ";
    }
    first = false;
    res += to_string(v[i]);
  }
  res += "}";
  return res;
}

template <size_t N>
string to_string(bitset<N> v) {
  string res = "";
  for (size_t i = 0; i < N; i++) {
    res += static_cast<char>('0' + v[i]);
  }
  return res;
}

template <typename A>
string to_string(A v) {
  bool first = true;
  string res = "{";
  for (const auto &x : v) {
    if (!first) {
      res += ", ";
    }
    first = false;
    res += to_string(x);
  }
  res += "}";
  return res;
}

template <typename A, typename B>
string to_string(pair<A, B> p) {
  return "(" + to_string(p.first) + ", " + to_string(p.second) + ")";
}

template <typename A, typename B, typename C>
string to_string(tuple<A, B, C> p) {
  return "(" + to_string(get<0>(p)) + ", " + to_string(get<1>(p)) + ", " + to_string(get<2>(p)) + ")";
}

template <typename A, typename B, typename C, typename D>
string to_string(tuple<A, B, C, D> p) {
  return "(" + to_string(get<0>(p)) + ", " + to_string(get<1>(p)) + ", " + to_string(get<2>(p)) + ", " + to_string(get<3>(p)) + ")";
}

void debug_out() { cerr << endl; }

template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
  cerr << " " << to_string(H);
  debug_out(T...);
}

#ifndef STOP_DEBUG
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...) 42
#endif



int main() {
  int n; cin >> n;
  vector<int> vec(n);
  for (int i = 0; i < n; ++i) {
    vec[i] = i + 1;
  }
  debug(vec);
  vector<int> F(n);
  vector<int> S(n);
  rep(i,n) cin >> F[i];
  debug(F);
  rep(i,n) cin >> S[i];
  debug(S);
  int cnt = 0, a, b;
  do {
    ++cnt;
    bool first = true, second = true;
    rep(i,n) {
      if (vec[i] != F[i]) {
        first = false;
      }
      if (vec[i] != S[i]) {
        second = false;
      }
    }
    if (first) a = cnt;
    if (second) b = cnt;
  } while (next_permutation(vec.begin(), vec.end()));
  debug(a-b);
  cout << abs(a-b) << '\n';
}


Measured memory_bytes: 256