/*
 * C# Program to Print a BinaryTriangle
 */
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Program
{
class Program
{
    public static void Main(String[] args)
    {
        int p, lastInt = 0, input;
        Console.WriteLine("Enter the Number of Rows : ");
        input = int.Parse(Console.ReadLine());
        for (int i = 1; i <= input; i++)
            {
                for (p = 1; p <= i; p++)
                    {
                        if (lastInt == 1)
                            {
                                Console.Write("0");
                                lastInt = 0;
                            }
                        else if (lastInt == 0)
                            {
                                Console.Write("1");
                                lastInt = 1;
                            }
                    }
                Console.Write("\n");
            }
        Console.ReadLine();
    }
}
}

/*
Enter the Number of Rows : 5
1
01
010
1010
10101