using System;

public class Program

{

    public static void Main()

    {

        int [ ] num = new int [10];

for ( int i =0; i<10; i++)

{

Console.WriteLine(" enter the number " + num[i]+ " + ");

num[i]=Convert.ToInt16(Console.ReadLine());

}

for( int i=0; i<4; i++)

{ 

int r= Random.Range(0,10);

Console.WriteLine( num[r]);

}

for(int i=0; i<10;i++)

{

if ( num[i] == num[r] )

{ 

Console.WriteLine(" it is lottery number");

}

else 

{ 

Console.WriteLine(" it is not lottery number");

}

}

Console.ReadLine();

    }

}