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 Java (OpenJDK 11.0.6) (judge verdict: Accepted)

class Main{

	public static void main (String[] args) {

		Main main = new Main();

		java.util.Scanner sc = new java.util.Scanner(System.in);

		int x = sc.nextInt();
		int kyu = 0;

		if (x<600) {
			kyu=8;
		} else if (x<800) {
			kyu=7;
		} else if (x<1000) {
			kyu=6;
		} else if (x<1200) {
			kyu=5;
		} else if (x<1400) {
			kyu=4;
		} else if (x<1600) {
			kyu=3;
		} else if (x<1800) {
			kyu=2;
		} else if (x<2000) {
			kyu=1;
		}

		System.out.println(kyu);

		sc.close();;

	}
}