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:

$x$

Output

Print the answer.

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.