# Problem: Firm

A firm **receives a request for creating a project for which** a certain amount of hours **are needed**. The firm has **a certain number of days**. **During 10% of the days, the workers** are being trained and **cannot work** on the project. A normal **working day is 8 hours long**. The project is important for the firm and every worker must work on it with **overtime of 2 hours per day**.

**The hours** must be **rounded down to the nearest integer** (example -> **6.98 hours** are rounded to **6 hours**).

Write a program that calculates whether **the firm can finish the project on time** and **how many hours more are needed or left**.

## Input Data

The input data is read from **the console** and contains **exactly three lines**:

- On
**the first**line are**the needed hours**–**an integer in the range of**[**0 … 200 000**]. - On
**the second**line are**the days that the firm has**–**an integer in the range of**[**0 … 20 000**]. - On
**the third**line are**the number of all workers**–**an integer in the range of**[**0 … 200**].

## Output Data

Print **one line** on **the console**:

- If
**the time is enough**:**"Yes!{the hours left} hours left."**.

- If
**the time is NOT enough**:**"Not enough time!{additional hours} hours needed."**.

## Sample Input and Output

Input | Output | Input | Output |
---|---|---|---|

90 7 3 |
Yes!99 hours left. | 99 3 1 |
Not enough time!72 hours needed. |

## Tips and Tricks

In order to solve the problem, we will read the input data. Then, we will write a few conditional statements and do some calculations. Finally, we will print the result.

### Reading the Input Data

**Firstly**, we need to decide what **data types** we are going to use for **the input data**.

### Auxiliary Calculations

The next step is to calculate **the number of total working hours** by multiplying the working days by 8 (every working day is 8 hours long) with the number of workers and then sum them with the overtime. **The working days** equal **90% of the days** that the firm has. **The overtime** equals to the result of the multiplication of the number of workers by 2 (the possible hours of overtime) and then it is multiplied by the number of days that the firm has. From the task requirements we see that **the hours** should be **rounded down to the nearest integer**, which we will do with the method ** Math.Floor(…)**.

### Checking the Conditions and Printing Output Data

After having done the calculations that are needed to find the value of **the working hours**, now we have to check whether these hours are **enough or some hours are left**.

If **the time is enough**, we print the result that is specified in the task requirements, which in this case is the difference between **the working hours and the hours needed** for finishing the project.

If **the time is not enough**, we print the additional hours that are needed for finishing the project. They equal the difference between **the hours for the project** and **the total working hours**.

## Testing in the Judge System

Test your solution here: https://judge.softuni.bg/Contests/Practice/Index/507#4.