Lottery Ticket Score

Background

Congcong recently became fascinated with an interesting digital lottery game. Each ticket has three integers printed on it, and different scores are awarded based on the characteristics of these three numbers.

Problem Description

You have a green lottery ticket, with integers $a, b,$ and $c$ on it. If the numbers are all different from each other, the result is $0$. If all of the numbers are the same, the result is $20$. If two of the numbers are the same, the result is $10$.

Input Format

Input is given from Standard Input in the following format:

$a$ $b$ $c$

Output Format

Output to Standard Output in the following format:

[Result]

Sample

1 2 3

0

2 2 2

20

1 1 2

10

Constraints

Time limit: $1$ second, Memory limit: $1024$ KiB for each test case.