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A cinema ticket

Beginner

Python for kids 路 Lesson 22: if and else - one of two

Problem Statement

A ticket for someone under 18 costs 10 zloty, and for older people - 20 zloty. Read the age and print the ticket price.

Input Format

One whole number - the age (1 <= age <= 100).

Output Format

One number - the result.

Examples
Example 1

Input

11

Output

10
Example 2

Input

18

Output

20