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Score : $100$ points

### Problem Statement

Smeke has decided to participate in AtCoder Beginner Contest (ABC) if his current rating is less than $1200$, and participate in AtCoder Regular Contest (ARC) otherwise.

You are given Smeke's current rating, $x$. Print ABC if Smeke will participate in ABC, and print ARC otherwise.

### Constraints

• $1 ≦ x ≦ 3{,}000$
• $x$ is an integer.

### Input

The input is given from Standard Input in the following format:

$x$


### Sample Input 1

1000


### Sample Output 1

ABC


Smeke's current rating is less than $1200$, thus the output should be ABC.

### Sample Input 2

2000


### Sample Output 2

ARC


Smeke's current rating is not less than $1200$, thus the output should be ARC.