p03813 AtCoder Beginner Contest 053 - ABC/ARC
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
```python
a= input()
if a<"1200":
    print("ABC")
else:
    print("ARC")
    

```