using System;

public class Program

{

    public static void Main()

    {

double num;

Console.WriteLine("عدد الكيلوواط");

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

double hak=0, hako;

if (num>180)

    hak = 180*70+(num-180)*90;

if (num <= 180)

    hak = num*70;

hako = hak * 1.17/100;

Console.WriteLine("hako={0}",hako);     

    }

}