Kah Khang wants to find out whether he met his targetted Grade Point of 3.9 for his End-of-Year Examination. Will you help him?
(For those who are unsure of the computation, here are the details below)
80 and above: 4.0
70 to 79: 3.6
65 to 69: 3.2
60 to 64: 2.8
55 to 59: 2.4
50 to 54: 2.0
45 to 49: 1.6
40 to 44: 1.2
Below 40: 0.8
Task
Write a program that takes in 1 integer value,
A, and output the computed GPA of the value.
Constraints
0 ≤
A ≤ 100
Input
Your program should read from standard input the following data:
The first line contains 1 integer
A.
Output
Your program should write to the standard output a single line containing a single 1 demical float.
Sample Input 1
75
Sample Output 1
3.6