Time limit 2000/4000/4000/4000 ms. Memory limit 65000/65000/65000/65000 Kb.
Question by Ibrahim Mesecan.
Bills of City Water Company
Write a program for the bills of the city water company. The water rates are computed as follows:
- $10 fixed price for the first 4 tones
- If it exceeds 4 tones; $0.005 for each additional litre.
Your program will first get the amount of water used (litres). It will then print the amount due from the user.
Input specification
You will be given the amount in liters - an integer
number (num) where 0 ≤ num ≤ 50000
Output specification
Show the amount due from the user. The number will contain at most two digits after the floating point.
Sample Input I
2367
|
Sample Input II
5387 |
Sample Output I
10
|
Sample Output II
16.93
|
Для отправки решений необходимо выполнить вход.
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