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A test mark

Beginner

Python for kids 路 Lesson 23: elif - many options

Problem Statement

Read the points (0..100) and print the mark: 5 for 90 and more, 4 for 75 and more, 3 for 50 and more, and 2 for less.

Input Format

One whole number - the points (0 <= points <= 100).

Output Format

One number - the result.

Examples
Example 1

Input

82

Output

4
Example 2

Input

90

Output

5
Example 3

Input

12

Output

2