Mr. Nimas is a new teacher of Chattogram Collegiate School. He is the class teacher of Class 9(F) and he has to create groups among the students according to the New Curriculum. He is struggling to make groups, each groups has 10 students according to their roll number, like:- if one’s roll number is 39, he will be a member of Group 4.
Now write a code for Mr. Nimas for finding the students’ in suitable groups.

The first (and the only) input line contains integer number N, roll number of a student.

-200 ≤ N ≤ 200

Print out the Group number. If the roll number is not Natural Number (1,2,3,4…) ,
Print out “Enter A Valid Number”

Input copy	Output copy
32	4

Input copy	Output copy
-25	Enter A Valid Number

This problem is created by samin8055