using System;

​

public class Program

{

    public static void Main()

    {

        Console.Write("Grade = ");

        double grade = double.Parse(Console.ReadLine());

        if (grade >= 5.50)

            Console.WriteLine("Отлична стипендия");

        else

        {

            Console.Write("House income = ");

            double income = double.Parse(Console.ReadLine());

            if (grade >= 4.50 && income <= 805.50)

                Console.WriteLine("Социална стипендия");

            else

                Console.WriteLine(":(");

        }

    }

}