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.

Examples

Input

1000

Output

ABC

Input

2000

Output

ARC

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