using System;

public class Program

{

    public static void Main(String[] args)

    {

        int prelimgrade, midtermgrade, finalgrade1, semestralgrade;

        float prelim, midterm, finalgrade;

        Console.Write("Input your prelim Grade: ");

        prelimgrade = Int32.Parse(Console.ReadLine());

        Console.Write("Input your midtermgrade: ");

        midtermgrade = Int32.Parse(Console.ReadLine());

        Console.Write("Input your final grade: ");

        finalgrade1 = Int32.Parse(Console.ReadLine());

        prelim = (float)(prelimgrade * .3);

        midterm = (float)(midtermgrade * .3);

        finalgrade = (float)(finalgrade1 * .4);

        semestralgrade = (int)(float)(prelim + midterm + finalgrade);

        Console.WriteLine("Your Prelim Grade is: " + prelim);

        Console.WriteLine("Your Midterm Grade is: " + midterm);

        Console.WriteLine("Your Final Grade is: " + finalgrade);

        Console.WriteLine("Overall, your semestral grade is " + semestralgrade);

    }

}