using System;
using System.IO;
using System.Linq;
using System.Text;
using System.Collections.Generic;
using System.Diagnostics;
using Enu = System.Linq.Enumerable;

class Program
{
    static readonly int Size1 = (int)20000, Size2 = (int)1000;
    static readonly Random random = new Random(0);

    int[][] A = new int[Size1][];

    public void Solve()
    {
        for (int i = 0; i < A.Length; i++) A[i] = new int[Size2];
        DoSomething();
        for (int i = 0; i < A.Length; i++) Array.Clear(A[i], 0, A[i].Length);
        DoSomething();
        Console.WriteLine(0);
    }

    public bool DoSomething()
    {
        for (int r = 0; r < A.Length; r++)
            for (int c = 0; c < A[r].Length; c++)
                A[r][c] = random.Next();
        return A[random.Next(Size1)][random.Next(Size2)] == 0;
    }

}


class Entry { static void Main() { new Program().Solve(); } }