using System;
public class Program
{
public static void Main()
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();
