#108. Power: a^2
You get an integer a. Print a to the power 2 (`a ** 2`).
### Input
One integer a (-20 ≤ a ≤ 20).
### Output
One integer.
Examples
Input
-3
Output
9
Input
20
Output
400
💡 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.