Problem:
Score: 100 points

Problem Statement

M-kun is a competitor in AtCoder, whose highest rating is X.

In this site, a competitor is given a kyu (class) according to his/her highest rating. For ratings from 400 through 1999, the following kyus are given:

From 400 through 599: 8-kyu

From 600 through 799: 7-kyu

From 800 through 999: 6-kyu

From 1000 through 1199: 5-kyu

From 1200 through 1399: 4-kyu

From 1400 through 1599: 3-kyu

From 1600 through 1799: 2-kyu

From 1800 through 1999: 1-kyu

What kyu does M-kun have?

Constraints

400 \leq X \leq 1999

X is an integer.

Input

Input is given from Standard Input in the following format:

X

Output

Print the kyu M-kun has, as an integer.
For example, if he has 8-kyu, print 8.

Sample Input 1

725

Sample Output 1

7

M-kun's highest rating is 725, which corresponds to 7-kyu.

Thus, 7 is the correct output.

Sample Input 2

1600

Sample Output 2

2

M-kun's highest rating is 1600, which corresponds to 2-kyu.

Thus, 2 is the correct output.

Solution in PyPy3 (7.3.0) (judge verdict: Accepted)

x = int(input())

if x>= 400 and x<= 599:
  print(8)
elif x>= 600 and x<= 799:
  print(7)
elif x>= 800 and x<= 999:
  print(6)
elif x>= 1000 and x<= 1199:
  print(5)
elif x>= 1200 and x<= 1399:
  print(4)
elif x>= 1400 and x<= 1599:
  print(3)
elif x>= 1600 and x<= 1799:
  print(2)
elif x>= 1800 and x<= 1999:
  print(1)