Taco Items Bonus Calculation

You are given an integer n representing the number of items you purchase. For every 10 items bought, you receive 1 free item. Your task is to calculate the total number of items received including these bonus items.

The relationship can be expressed in LaTeX as follows:

$$ total = n + \left\lfloor \frac{n}{10} \right\rfloor $$

For example, if you purchase 15 items, you get \(\lfloor15/10\rfloor = 1\) bonus item, making the total 16.

inputFormat

The input is provided via stdin as a single integer n representing the number of items bought.

outputFormat

Output the total number of items received (purchased items plus bonus items) to stdout as a single integer.

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