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)

import java.util.Scanner;


public class Main {
//	final static int MOD = 1000000007;

	public static long ans = 0;

	public static void main(String[] args) {

//		int ans = 0;
		Scanner sc = new Scanner(System.in);
		boolean f = false;

//		long a = sc.nextLong();

		int n = sc.nextInt();


		//-------------------------------------------------------------------------------------

		if(n >= 400 && n <= 599) {
			ans = 8;
		} else if(n >= 600 && n <= 799) {
			ans = 7;
		} else if(n >= 800 && n <= 999) {
			ans = 6;
		} else if(n >= 1000 && n <= 1199) {
			ans = 5;
		} else if(n >= 1200 && n <= 1399) {
			ans = 4;
		} else if(n >= 1400 && n <= 1599) {
			ans = 3;
		} else if(n >= 1600 && n <= 1799) {
			ans = 2;
		} else if(n >= 1800 && n <= 1999) {
			ans = 1;
		}

		//-------------------------------------------------------------------------------------

//		if(f) {
//			System.out.println("Yes");
//		} else {
//			System.out.println("No");
//		}

		System.out.println(ans);

		sc.close();
	}



}