using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace BIMM
{
    internal class Program
    {
        static void Main(string[] args)
        {
            int N = int.Parse(Console.ReadLine());
            for (int i = 0; i < N; i++)
            {
                Console.ReadLine();
            }
            //string[] input = new string[N];
            /*int counter = 1;
            string expect = "";
            for (int i = 0; i < N; i++)
            {
                if (counter<0)
                {
                    if (counter % 3 == 0)
                    {
                        if (counter % 5 == 0)
                        {
                            expect = "BUMM";
                        }
                        else
                        {
                            expect = "BIMM";
                        }
                    }
                    else if (counter % 5 == 0)
                    {
                        expect = "BAMM";
                    }
                    else
                    {
                        expect = "SZAM";
                    }
                    if (Console.ReadLine() != expect)
                    {
                        counter = -counter;
                        break;
                    }
                    counter++;
                }
                else
                {
                    expect=Console.ReadLine();
                }
            }
            
            if (counter>0)
            {
                Console.WriteLine("0");
            }
            else
            {
                Console.WriteLine((-counter));
            }*/











            //Console.ReadKey();
        }
    }
}