using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Please enter the initial velocity : ");

        string a = Console.ReadLine();

        Console.WriteLine("Please enter the traveled time : ");

        string b = Console.ReadLine();

        double u = Convert.ToDouble(a);

        double t = Convert.ToDouble(b);

        if (t<0)

        {

            Console.WriteLine("Please enter the correct time. The traveled time can't be negative value");

        }

        else

        {

        double s = (u*t)+(0.5*9.8*t*t);

        string str = string.Format("{0:0.00}",s);

        Console.WriteLine("The distance traveled is "+str);

        }

    }

}