1.5. Exercise: Headphones

You want to buy a new pair of headphones from Amazon. The tax percentage applied to products at Amazon is 20%.

Write a program that calculates the tax for the product. First, you shall read an integer from the input; then calculate the tax value; finally, print the result value as a float. (1 digit after decimal point is sufficient)

Sample I/O:

Input 1:
200

Output 1:
40.0

Input 2:
100

Output 2:
20.0