#194. Discount 50%
An item costs p tugriks. Find the price after a 50% discount. The price must be a whole number, so compute `p * (100 - 50) // 100`.
### Input
One integer p (0 ≤ p ≤ 1000000).
### Output
The discounted price.
Examples
Input
107490
Output
53745
Input
90611
Output
45305
💡 You can solve it with Python, JavaScript or blocks. Read the input line by line with input(). Don't print a question (like input("Number: ")). Print exactly what the output asks for, nothing more.