using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Linq;
using System.Numerics;

namespace AtCoderWorkspace
{
    public class Solver
    {
        public void Solve()
        {
            var cin = new Scanner();
            var n = cin.nextInt();
            var p = cin.ArrayInt(n);
            var q = cin.ArrayInt(n);

            var perm = new Permutation();
            var pp = perm.Enumerate(Enumerable.Range(1, n));

            var list = new List<string>();
            foreach (var item in pp)
            {
                list.Add(String.Join("", item));
            }
            list.Sort();

            var ps = String.Join("", p);
            var qs = String.Join("", q);
            var a = 0;
            var b = 0;
            var i = 1;
            foreach (var item in list)
            {
                if (item.Equals(ps))
                {
                    a = i;
                }
                if (item.Equals(qs))
                {
                    b = i;
                }
                i++;
            }

            Console.WriteLine(Math.Abs(a-b));
        }
    }

    public class Permutation
    {
        public IEnumerable<T[]> Enumerate<T>(IEnumerable<T> items)
        {
            return _GetPermutations<T>(new List<T>(), items.ToList());
        }

        private IEnumerable<T[]> _GetPermutations<T>(IEnumerable<T> perm, IEnumerable<T> items)
        {
            if (items.Count() == 0)
            {
                yield return perm.ToArray();
            }
            else
            {
                foreach (var item in items)
                {
                    var result = _GetPermutations<T>(perm.Concat(new T[] { item }),
                                                        items.Where(x => x.Equals(item) == false)
                                    );
                    foreach (var xs in result)
                        yield return xs.ToArray();
                }
            }
        }
    }

    class Scanner
    {
        string[] s;
        int i;

        char[] cs = new char[] { ' ' };

        public Scanner()
        {
            s = new string[0];
            i = 0;
        }

        public string next()
        {
            if (i < s.Length) return s[i++];
            string st = Console.ReadLine();
            while (st == "") st = Console.ReadLine();
            s = st.Split(cs, StringSplitOptions.RemoveEmptyEntries);
            if (s.Length == 0) return next();
            i = 0;
            return s[i++];
        }

        public int nextInt()
        {
            return int.Parse(next());
        }
        public int[] ArrayInt(int N, int add = 0)
        {
            int[] Array = new int[N];
            for (int i = 0; i < N; i++)
            {
                Array[i] = nextInt() + add;
            }
            return Array;
        }

        public int[] DPArrayInt(int N, int ex)
        {
            int[] Array = new int[N+ex];
            for (int i = 0; i < N; i++)
            {
                Array[i] = nextInt();
            }
            return Array;
        }

        public long nextLong()
        {
            return long.Parse(next());
        }

        public long[] ArrayLong(int N, long add = 0)
        {
            long[] Array = new long[N];
            for (int i = 0; i < N; i++)
            {
                Array[i] = nextLong() + add;
            }
            return Array;
        }

        public long[] DPArrayLong(int N, int ex)
        {
            long[] Array = new long[N + ex];
            for (int i = 0; i < N; i++)
            {
                Array[i] = nextLong();
            }
            return Array;
        }

        public double nextDouble()
        {
            return double.Parse(next());
        }


        public double[] ArrayDouble(int N, double add = 0)
        {
            double[] Array = new double[N];
            for (int i = 0; i < N; i++)
            {
                Array[i] = nextDouble() + add;
            }
            return Array;
        }
    }   

    class Program
    {
        static void Main(string[] s) => new Solver().Solve();
    }
}


Measured memory_bytes: 23896