Write a program to calculate the average marks of Mathematics, Biology, Chemistry, Physics, and
Bangla of a student.
Input:
The first line of the input is the marks of the five subjects mentioned above, respectively.
Output:
Print the result in 2 decimal places.

Practice Problem 2

Sample Input:
75.25, 65, 80, 35.45, 99.50
Output:
71.04

[Source: https://drive.google.com/drive/u/1/folders/1FbntkDTYNA33BuiqJ9TVF9-YWlqvhZch](https://drive.google.com/drive/u/1/folders/1FbntkDTYNA33BuiqJ9TVF9-YWlqvhZch)