using System;
using System.Collections.Generic;
using System.Linq;

namespace ABC150_C
{
    public class Program
    {
        public static void Main(string[] args)
        {
            new Program().Solve(new ConsoleInput(Console.In, ' '));
        }

        public void Solve(ConsoleInput cin)
        {
            int N = cin.ReadInt;
            var P = cin.ReadIntArray(N);
            var Q = cin.ReadIntArray(N);
            var count = 0;
            var value = true;
            var a = 0;
            var b = 0;

            var perm = new Permitation();
            foreach (var n in perm.Enumerate(Enumerable.Range(1, N), N))
            {
                count++;
                for (int i = 0; i < N; i++)
                {
                    if (n[i] != P[i]) value = false;
                }
                if (value) a = count;
                value = true;
                for (int i = 0; i < N; i++)
                {
                    if (n[i] != Q[i]) value = false;
                }
                if (value) b = count;
                value = true;
            }
            Console.Write(Math.Abs(a - b));
        }
    }
    
    public class Permitation
    {
        public  IEnumerable<T[]> Enumerate<T>(IEnumerable<T> items, int k)
        {
            if (k == 1)
            {
                foreach (var item in items)
                {
                    yield return new T[] {item};
                }

                yield break;
            }

            foreach (var item in items)
            {
                var leftside = new T[] {item};
                var unused = items.Except(leftside);
                foreach (var rightside in Enumerate(unused, k - 1))
                {
                    yield return leftside.Concat(rightside).ToArray();
                }
            }
        }
    }

    public class ConsoleInput
    {
        private readonly System.IO.TextReader _stream;
        private char _separator = ' ';
        private Queue<string> inputStream;
        public ConsoleInput(System.IO.TextReader stream, char separator = ' ')
        {
            this._separator = separator;
            this._stream = stream;
            inputStream = new Queue<string>();
        }
        public string Read
        {
            get
            {
                if (inputStream.Count != 0) return inputStream.Dequeue();
                string[] tmp = _stream.ReadLine().Split(_separator);
                for (int i = 0; i < tmp.Length; ++i)
                    inputStream.Enqueue(tmp[i]);
                return inputStream.Dequeue();
            }
        }
        public string ReadLine { get { return _stream.ReadLine(); }}
        public int ReadInt { get { return int.Parse(Read); }}
        public long ReadLong { get { return long.Parse(Read); }}
        public double ReadDouble { get { return double.Parse(Read); }}
        public string[] ReadStrArray(long N) { var ret = new string[N]; for (long i = 0; i < N; ++i) ret[i] = Read; return ret;}
        public int[] ReadIntArray(long N) { var ret = new int[N]; for (long i = 0; i < N; ++i) ret[i] = ReadInt; return ret;}
        public long[] ReadLongArray(long N) { var ret = new long[N]; for (long i = 0; i < N; ++i) ret[i] = ReadLong; return ret;}
    }
}

Measured memory_bytes: 20452