import javax.swing.JOptionPane;

public class VisinaMostu {
    public static void main(String[] args) {
        //preberemo podatek
        String cas = JOptionPane.showInputDialog("Vnesi cas padanja kamna z mostu do tal (v sekundah):");
        double t = Double.parseDouble(cas);

        //poklicemo metodo in izpisemo rezultat
        System.out.println("Visina : " + globina(t) + " m.");
    }

    public static double globina(double t) {
        double g = 9.8;
        //izracunamo visino
        double h = g * t * t / 2;
        //zaokrozimo na dve decimalki
        h = (int)(h*100) / 100.0;
        return h;
    }
}

using System;
using System.Collections.Generic;
using System.Text;

namespace VisinaMostu {
class VisinaMostu {
    static void Main(string[] args) {
        //preberemo podatek
        Console.Write("Vnesi cas padanja kamna z mostu do tal (v sekundah): ");
        double t = Double.Parse(Console.ReadLine());

        //poklicemo metodo in izpisemo rezultat
        Console.WriteLine("Visina : " + globina(t) + " m.");
        Console.ReadKey();
    }

    public static double globina(double t) {
        double g = 9.8;
        //izracunamo visino
        double h = g * t * t / 2;
        //zaokrozimo na dve decimalki
        h = (int)(h * 100) / 100.0;
        return h;
    }
}
}

#!C:/Python30/python
#-*-encoding: utf-8 -*-
# -*- coding: latin-1 -*-

def globina(t):
    g = 9.8;
    #izracunamo visino
    h = g * t * t / 2;
    #zaokrozimo na dve decimalki
    h = (h*100) / 100.0
    return h
   
#preberemo podatek
t =float(input("Vnesi cas padanja kamna z mostu do tal (v sekundah):"))    

#poklicemo metodo in izpisemo rezultat
print ("Visina :",globina(t),"m.")