using System;

public class Program

{ 

    public static void Q10()

    {

        //سؤال5

        Console.Write("Please enter a positive number :");

        int a=int.Parse(Console.ReadLine());

        bool d1;

        d1=true;

        d1=false;

        d1=(a>9&&a<100&&a/2==0);

       Console.Write(d1);

    }

    public static void Q9()

    {

        /*سؤال4

        Console.Write("Please enter a positive number :");

        int a=int.Parse(Console.ReadLine());

        bool d1;

        d1=true;

        d1=false;

        d1=(a>100&&a<1000);

       Console.Write(d1);

       */

    }

    public static void Q8()

    {

        /*سؤال3

        Console.Write("Please enter a positive number :");

        int a=int.Parse(Console.ReadLine());

        bool d1;

        d1=true;

        d1=false;

        d1=(a>9&&a<100);

        Console.Write(d1);

        */      

    }

    public static void Q7()

    {

        /*سؤال2

        Console.Write("Please enter a positive number :");

        int a=int.Parse(Console.ReadLine());

        bool d1;

        d1=true;

        d1=false;

        d1=(a/2!=0);

        Console.Write(d1);

        */

    }

    public static void Q6()

    {

        /*سؤال1

        Console.Write("Please enter a  positive number:");

        int a=int.Parse(Console.ReadLine());

        bool d1;

        d1=true;

        d1=false;

        d1=(a>10);

        Console.Write(d1);

        */  

    }

    public static void Q5()

    {

        /*Console.Write("Please enter a number from 3 houses:");

        int a=int.Parse(Console.ReadLine());

        if(a/10==a%10 && a/100==a/10)

            Console.Write("yes");

        else

        Console.Write("no");

        */

​

    }

    public static void Q4()

    {

        /*Console.Write("Please enter a number from 2 houses:");

        int a=int.Parse(Console.ReadLine());

        if((a/10)==(a%10))

            Console.Write("yes");

        int a=int.Parse(Console.ReadLine());

        if((a/10)==(a%10))

            Console.Write("yes");

            else

            Console.Write("no");

​

            */

    }

    public static void Q3()

    {

        /*Console.Write("Please enter a number:");

         int a=int.Parse(Console.ReadLine());

        if (a<0)

        Console.Write(a*-1);

        else

            Console.Write("a");

        @/

    }

    public static void Q2()

    {

         /*Console.Write("Please enter a number:");

    int a=int.Parse(Console.ReadLine());

     Console.Write("Please enter a second number:");

    int b=int.Parse(Console.ReadLine());

    int c=a-b;

     if (c>10)

     Console.Write("the numbers is equel");

     else

    Console.Write("the numbers is  not equel");

    */  

    }

    public static void Main()

    {

        /*  Console.Write("Please enter a number:");

    int a=int.Parse(Console.ReadLine());

     Console.Write("Please enter a second number:");

    int b=int.Parse(Console.ReadLine());

     if (a==b)

     Console.Write("the numbers is equel");

     else

     Console.Write("the numbers is  not equel");

        */Q10();

  }

}