#621. Median (with 1 digit after the decimal point)
You are given a list of integers. **Median (with 1 digit after the decimal point)**. If there is no second value, print `None`. If the answer has several numbers, separate them with spaces.
### Input
The first line has n, the second line has n integers separated by spaces.
### Output
The answer.
Examples
Input
3 11 -20 -16
Output
-16.0
Input
8 -18 -10 -7 -7 -18 19 -10 -2
Output
-8.5
💡 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.