Problem:
 Score : 100 points    Problem Statement AtCoder Inc. holds a contest every Saturday.  There are two types of contests called ABC and ARC, and just one of them is held at a time.  The company holds these two types of contests alternately: an ARC follows an ABC and vice versa.  Given a string S representing the type of the contest held last week, print the string representing the type of the contest held this week.      Constraints  S is ABC or ARC .         Input Input is given from Standard Input in the following format:  S       Output Print the string representing the type of the contest held this week.        Sample Input 1 ABC      Sample Output 1 ARC  They held an ABC last week, so they will hold an ARC this week.

Solution (Python):
s = input()
if s in 'ABC':
  print("ARC")
else:
  print("ABC")

Solution (Python):
def main():
    a = input()
    if a == "ABC":
        print("ARC")
    else:
        print("ABC")
if __name__ == '__main__':
    main()

Solution (Python):
S = input()

answer = 'ABC' if S == 'ARC' else 'ARC'

print(answer)

Solution (Python):
if 'B' in input():
  print('ARC')
else:
  print('ABC')

Solution (Python):
s = input()
if s == "ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
s = input()
print("ABC") if s == "ARC" else print("ARC")

Solution (Python):
S=input()
if S == "ABC":
    print("ARC")
if S == "ARC":
    print("ABC")

Solution (Python):
S = input()

if S[1] == 'B':
  print('ARC')

if S[1] == 'R':
  print('ABC')

Solution (Python):
S = input()
if S == 'ABC':
  print('ARC')
else:
    print('ABC')

Solution (Python):
S = input()
if S == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
S = str(input())
if S == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
raw_input = input().strip()
if raw_input == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
input_str = input()

if input_str == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
S=input()
print('ABC' if S=='ARC' else 'ARC')

Solution (Python):
S = input()
if S == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
S = input()
if S == 'ABC':
    print('ARC')
else:
    print("ABC")

Solution (Python):
S = input()

if S == 'ARC':
  print('ABC')
else:
  print('ARC')

Solution (Python):
X = input()
if X == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
s = list(input())
s[1] = "R" if s[1] == "B" else "B"
print("".join(s))

Solution (Python):
import sys
input = sys.stdin.readline
def main():
    S = input().rstrip("\r\n")
    if S == "ABC":
        print("ARC")
    else:
        print("ABC")
if __name__ == "__main__":
    main()

Solution (Python):
s = input()
if s == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
s = input()
if (s == 'ABC'):
    print('ARC')
else:
    print('ABC')

Solution (Python):
lines = input()

X = str(lines)

if X =='ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
A = input().split()

if A[0][1] == 'B':
    print('ARC')
elif A[0][1] == 'R':
    print('ABC')

Solution (Python):
a = input()
if a == 'ABC':
    print('ARC')
elif a == 'ARC':
    print('ABC')

Solution (Python):
s = str(input())

if s == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
S = input()
if S == "ABC":
    print("ARC")
elif S == "ARC":
    print("ABC")

Solution (Python):
s=input().upper()
if s=="ARC":
  print("ABC")
else:
  print("ARC")

Solution (Python):
s = input()

if s == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
S=str(input())
if S=='ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
S=input()
if S=="ARC":
	print("ABC")
else:
	print("ARC")

Solution (Python):
a = input()
if a == 'ABC':
  print('ARC')
elif a == 'ARC':
  print('ABC')

Solution (Python):
s = input()
if s == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
s=input()
if s=="ARC":
    print("ABC")
elif s=="ABC":
    print("ARC")

Solution (Python):
s = input()
if(s=="ABC"):
    print("ARC")
else:
    print("ABC")

Solution (Python):
c=input()

if c == "ARC":
    print("ABC")
else:
    print("ARC")

Solution (Python):
S = input()
print("ARC") if S == "ABC" else print("ABC")

Solution (Python):
S=input()

if S=='ARC':
    print('ABC')
elif S == 'ABC':
    print('ARC')

Solution (Python):
S = input()

if S[1] == 'B':
    print('ARC')
else:
    print('ABC')

Solution (Python):
a=input()
if a=='ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
s = input()

if s == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):


k = input()

if k == "ABC":
    print("ARC")
elif k == "ARC":
    print("ABC")

Solution (Python):
S = str(input())
if(S == "ABC"):
    print("ARC")
else:
    print("ABC")

Solution (Python):
s = input()
if s[1] == "R":
    print("ABC")
else:
    print("ARC")

Solution (Python):
import sys
readline = sys.stdin.buffer.readline
s =readline().rstrip().decode()
if s == 'ARC':
  print('ABC')
else:
  print('ARC')

Solution (Python):
S = input()
if S == 'ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):


ln = input()
if ln == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
S=input()
if S=="ABC":
  print("ARC")
elif S=="ARC":
  print("ABC")

Solution (Python):
def main():
    code = input()
    result = ""
    if (code == "ABC"):
        print("ARC")
        pass
    if (code == "ARC"):
        print("ABC")


if __name__ == "__main__":
    
    main()

Solution (Python):
S = input()

if S == 'ABC':
    print('ARC')

else:
    print('ABC')

Solution (Python):

S = input()

if S == "ABC":
  S = "ARC"
elif S == "ARC":
  S = "ABC"
else :
  S = "ABCかARCを入力してください"

print(S)

Solution (Python):
import sys


def solve(S: str):

    if S == 'ABC':
        print('ARC')
    else:
        print('ABC')

    return


def main():
    def iterate_tokens():
        for line in sys.stdin:
            for word in line.split():
                yield word
    tokens = iterate_tokens()
    S = next(tokens)  
    solve(S)

if __name__ == '__main__':
    main()

Solution (Python):
x=input()
if x=="ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
s = input()
if s == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
import sys
input=sys.stdin.readline

S=input().rstrip('\n')
if S=='ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
thing = input()
print("ABC") if thing == "ARC" else print("ARC")

Solution (Python):
S=input()

if S=='ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
s = input()


if s == 'ABC':
    print('ARC')
elif s == 'ARC':
    print('ABC')

Solution (Python):
S = input()

contests = {
  'ABC': 'ARC',
  'ARC': 'ABC'
}

print(contests[S])

Solution (Python):
S=str(input())

if S=='ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
a = input()
if a == 'ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
a = input()
if a=='ABC':
  print('ARC')
else :
  print('ABC')

Solution (Python):
print("ARC" if input() == "ABC" else "ABC")

Solution (Python):


import sys
readline = sys.stdin.readline
read = sys.stdin.read




s = input()
a = ["ABC","ARC"]
print(a[a.index(s)^1])

Solution (Python):
S = input()
print("ABC" if S == "ARC" else "ARC")

Solution (Python):
outPut = {
    "ABC": "ARC",
    "ARC": "ABC"
}

usrInput = input()
print(outPut[usrInput])

Solution (Python):
s = input().strip()
if s=="ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
S = input()

if S == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
S = input()
if S == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
s=input()
if(s=="ABC"):
  print("ARC")
else:
  print("ABC")

Solution (Python):
s=input()
print('ABC' if s=='ARC' else 'ARC')

Solution (Python):
S = input()

if S == "ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
if input()=="ARC":
    print ("ABC")
else:
    print ("ARC")

Solution (Python):
S = str(input())
if S == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
s = input()
if s == 'ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
import sys
input = sys.stdin.readline



S = input()
if S[1] == "B":
    print("ARC")
else:
    print("ABC")

Solution (Python):
S = input()
if S == 'ABC':
  print("ARC")
elif S == 'ARC':
  print('ABC')

Solution (Python):
_,X,_=input()
if X == "R":
    print("ABC")
else:
    print("ARC")

Solution (Python):
if(input()=='ABC'):
  print('ARC')
else:
  print('ABC')

Solution (Python):
"""
/usr/bin/python3
Info Fields (opt.)
- Type: 
- Keywords:
- Notes:
"""
from sys import stdin, exit

if __name__ == '__main__':

   n=input()
     
   if n == 'ABC':
       print("ARC")
   else:
       print("ABC")

Solution (Python):
s = input()
if s == 'ABC':
  print ('ARC')
elif s == 'ARC':
  print ('ABC')

Solution (Python):
s=input()
if s == 'ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
input_line = input()

if (input_line == "ABC"):
  print("ARC")
else:
  print("ABC")

Solution (Python):
print({'ABC':'ARC','ARC':'ABC'}[input()])

Solution (Python):
i = input()
o = 'ABC' if i == 'ARC' else 'ARC'
print(o)

Solution (Python):
import sys
import math

s = sys.stdin.readline().rstrip()

print("ABC" if s != "ABC" else "ARC")

Solution (Python):
lw=input()
if lw=='ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
def main():
    
    
    s = input()
    if 'ABC' == s:
        print('ARC')
    else:
        print('ABC')

if __name__ == "__main__":
    main()

Solution (Python):

import sys, math
from itertools import permutations, combinations
from collections import defaultdict, Counter, deque
from math import factorial
from bisect import bisect_left 
sys.setrecursionlimit(10**7)
enu = enumerate
MOD = 10**9+7
def input(): return sys.stdin.readline()[:-1]
def pri(x): print('\n'.join(map(str, x)))

S = input()

if S == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
s = input()
print("ABC" if s == "ARC" else "ARC")

Solution (Python):
S=str(input())

if S==str("ABC"):
  print("ARC")
  
else:
   print("ABC")

Solution (Python):
import sys

S = input()

if S == "ABC":
    print("ARC")
elif S == "ARC":
    print("ABC")

Solution (Python):
s = input()
if s == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
s = input()
if s == "ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
s=input()
if s=="ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
S = str(input())
if S == 'ABC':
    x = S.replace('B', 'R')
    print(x)
elif S == 'ARC':
    x = S.replace('ARC', 'ABC')
    print(x)

Solution (Python):
if input() == 'ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
C = (input())

if C == "ARC":
    print("ABC")
else:
    print("ARC")

Solution (Python):
s=str(input())
if s=="ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
s=input()
if s=='ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
s = input()

if s == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
s = input()
if s=='ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
s = input()
if s == "ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
S = input()

if S == 'ABC':
    S = 'ARC'
else:
    S = 'ABC'
    
print(S)

Solution (Python):
if __name__ == '__main__':
    s = input()
    if s == "ABC":
        print("ARC")
    elif s == "ARC":
        print("ABC")

Solution (Python):
s = input()

if s == "ABC":
  print("ARC")
elif s == "ARC":
  print("ABC")
else:
  print("error")

Solution (Python):
s = input()
if s == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
S = input()
if S == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
def main():
  return 'ABC' if input() == 'ARC' else 'ARC'

print(main())

Solution (Python):
S = input()
if S == "ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
if __name__ == '__main__':
    string=input()
    if string=='ABC':
        print("ARC")
    else:
        print("ABC")

Solution (Python):
s = input()
if s == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
s=str(input())
if s =="ARC":
  print("ABC")
else:
  print("ARC")

Solution (Python):
S=input()
if S=="ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
s = input()
if s == 'ABC':
	print('ARC')
else:
	print('ABC')

Solution (Python):
S = input()
if S[1] == 'B':
    print('ARC')
else:
    print('ABC')

Solution (Python):
S = input()
if S =="ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
s=input()
if(s=="ABC"):
  print("ARC")
elif(s=="ARC"):
  print("ABC")

Solution (Python):
a=input()
if a=='ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
import sys;input=lambda:sys.stdin.readline().rstrip();aint=lambda:int(input());ints=lambda:list(map(int,input().split()))
import math;floor,ceil=lambda x:int(math.floor(x)),lambda x:int(math.ceil(x))
from functools import reduce;gcd=lambda*x:reduce(math.gcd,x);lcm=lambda*x:reduce(lambda x,y:(x*y)//gcd(x,y),x,1)
from collections import deque
import bisect
Yes=lambda b:print("Yes"if b else"No");YES=lambda b:print("YES"if b else"NO")
is_even=lambda x:True if x%2==0 else False

def main():
  s=input()
  if s=='ABC':
    print('ARC')
  else:
    print('ABC')

if __name__ == '__main__':
    main()

Solution (Python):
a=input()
if a=="ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
name = input()
if name == "ARC":
    print("ABC")
else:
    print("ARC")

Solution (Python):
S=input()

if S=='ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
S = input()
 
if S == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):

s = input()
if s == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
import sys
def input(): return sys.stdin.readline().strip()
def INT(): return int(input())
def MAP(): return map(int, input().split())
def LIST(): return list(map(int, input().split()))

s = input()
if s == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
a=input()
if a=="ARC":
  print("ABC")
 
if a=="ABC":
  print("ARC")

Solution (Python):
def awc(s):
    print("ARC" if s == "ABC" else "ABC")

if __name__ == "__main__":
    import sys
    in_str = input()
    awc(in_str)

Solution (Python):
S = input()
if str(S) == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
print("ABC" if input() == "ARC" else "ARC")

Solution (Python):




def main():
    s = input().strip()

    print("ARC" if s == "ABC" else "ABC")


if __name__ == '__main__':
    main()

Solution (Python):
s = input()
f = 0
for i in s:
  if i == 'B':
    f = 1


if f == 1:
  print("ARC")
else :
  print("ABC")

Solution (Python):
S = input()

if S == 'ARC' :
	print ('ABC')
else :
	print ('ARC')

Solution (Python):
s = input()

if s == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
s = str(input())
if s == "ABC" :
    print("ARC")
if s =="ARC":
    print("ABC")

Solution (Python):
C = input()[1]; print("ABC" if C == "R" else "ARC")

Solution (Python):
s = input()

if s == 'ABC':
    s = 'ARC'
else:
    s = 'ABC'

print(s)

Solution (Python):
S = input()

if 'B' in S:
    print('ARC')
else:
    print('ABC')

Solution (Python):
i = input()
if "ABC" in i:
    print("ARC")
else:
    print("ABC")

Solution (Python):
s = input()

if s == 'ABC':
    print('ARC')
else:
    print("ABC")

Solution (Python):
s=input()
if s=="ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
s = input()
if s == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
S = input()
if S == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
def main():
    s = input()

    if s == "ABC":
        print("ARC")
    else:
        print("ABC")


if __name__ == '__main__':
    main()

Solution (Python):
s = input()
if s=='ABC':
    print('ARC')
elif s=='ARC':
    print('ABC')

Solution (Python):
s = input()
if s == 'ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
S = input()
if S == 'ABC':
	print('ARC')
else:
	print('ABC')

Solution (Python):
if input()=='ABC' :
    print('ARC')
else:
    print('ABC')

Solution (Python):
S = input()

if(S == 'ABC'):
    print('ARC')
elif(S == 'ARC'):
    print('ABC')

Solution (Python):
S = input() 
if S=='ABC':
	print("ARC")
else:
	print("ABC")

Solution (Python):



                            
                            
                            
                            



import sys
import math as mt


def get_ints(): return map(int, sys.stdin.readline().strip().split())
def get_array(): return list(map(int, sys.stdin.readline().strip().split()))

def printwsp(*args): return print(*args, end="")
def printsp(*args): return print(*args, end=" ")
def printchk(*args): return print(*args, end="tst, ")

MOD = int(1e9+7); BABYMOD = 998244353;



s=input()
if s=="ABC":
    print("ARC")
else:
    print("ABC")



'''
THE LOGIC AND APPROACH WAS DEVELOPED BY ME @luctivud.
SOME PARTS OF THE CODE HAS BEEN TAKEN FROM WEBSITES LIKE::
(I Own the code if no link is provided here or I may have missed mentioning it)
PLEASE DO NOT PLAGIARISE.
'''

Solution (Python):
print(['ABC','ARC'][input()=='ABC'])

Solution (Python):
s = input()

if s == 'ABC':
	print('ARC')
else:
	print('ABC')

Solution (Python):
S=input()
if S=="ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
S = input()

if S == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
input_test = input()

if input_test  == "ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
S = input()

if S == 'ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
print("A"+{'B':'R','R':'B'}[input()[1]]+"C")

Solution (Python):
s=input()
if s=="ABC":print("ARC")
else:print("ABC")

Solution (Python):
s = input()

ans = "ABC"
if s == "ABC":
    ans = "ARC"

print(ans)

Solution (Python):
S = input()
if S[1] == 'B':
    print('ARC')
else:
    print('ABC')

Solution (Python):
S = input()
if S == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
import sys
def input(): return sys.stdin.readline().rstrip()

def main():
    S = input()
    if S == 'ABC':
        print('ARC')
    else:
        print('ABC')

if __name__ == '__main__':
    main()

Solution (Python):
s = input()

if s == 'ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
lastweek = input()
if lastweek == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
S = input()

if S[1] == 'B':
    print('ARC')
else:
    print('ABC')

Solution (Python):
S = input()
if S == "ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
s = input()
if (s=="ABC"):
    print("ARC")
elif(s == "ARC"):
    print("ABC")

Solution (Python):
if __name__ == '__main__':
    string=input()
    if string=='ABC':
        print("ARC")
    else:
        print("ABC")

Solution (Python):
S = input()
if S == "ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
if __name__ == "__main__":
    S = input()
    if S == 'ARC':
        print('ABC')
    else:
        print('ARC')

Solution (Python):

get = input()
if get == 'ABC':
    print('ARC')
elif get == 'ARC':
    print('ABC')

Solution (Python):
s = input()
print("ABC") if s[1] == "R" else print("ARC")

Solution (Python):
S = input()
if S == 'ABC':
    print("ARC")
else:
    print("ABC")

Solution (Python):
S = input()
if S == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
s = input()
if s == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
input_AC = input()
AC = str(input_AC)

if AC == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
s = input()

if s == "ARC":
    print("ABC")
else:
    print("ARC")

Solution (Python):
S = input()

if S=="ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
s=input()
if s=="ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
s = input()

if s == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
S = input()
if S[1] == 'B' :
    ans = 'ARC'
elif S[1] == 'R' :
    ans = 'ABC'

print(ans)

Solution (Python):
s = input()
if s == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
s = input()
if s=="ABC":
   print("ARC")
else:
   print("ABC")

Solution (Python):
S = input()
if S ==  'ABC' :
    print( 'ARC' )
elif S ==  'ARC' :
    print( 'ABC' )

Solution (Python):
N = input()

if N == 'ARC':
    print('ABC')
else:
    print('ARC')

Solution (Python):
print('ARC' if input() == 'ABC' else 'ABC')

Solution (Python):
s = input()
if s == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
s = input()
if s == "ABC":
    print("ARC")
if s == "ARC":
    print("ABC")

Solution (Python):
s = input().rstrip('\n');
if s == 'ABC' :
    print('ARC');
else :
    print('ABC');

Solution (Python):
if input() == 'ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
S = input()

if S == "ABC":
  print("ARC")
else :
  print("ABC")

Solution (Python):
S = input()
if S == "ABC":
  print("ARC")
elif S == "ARC":
  print("ABC")

Solution (Python):
S=input()
if S=='ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
S = input()

if S == "ABC":
  print("ARC")

else:
  print("ABC")

Solution (Python):
s = str(input())
print("ABC" if s == "ARC" else "ARC")

Solution (Python):
S=input()
if S=="ABC" :
  print("ARC")
else :
  print("ABC")

Solution (Python):
s = input()
if (s=='ABC'):
    print('ARC')
else:
    print('ABC')

Solution (Python):
S = input()
if S =='ARC':
	print('ABC')
else:print('ARC')

Solution (Python):

S = str(input())

if S == "ABC":
    print ("ARC")
else:
    print ("ABC")

Solution (Python):
s=input()
if s[1]=='B':
  print("ARC")
else:
  print("ABC")

Solution (Python):
S=input()
print('ARC') if S=='ABC' else print('ABC')

Solution (Python):
S=input()
if S=='ARC':
    print('ABC')
else:
    print('ARC')

Solution (Python):
print("ARC"if input()=="ABC" else "ABC")

Solution (Python):
print('ARC' if input() == 'ABC' else 'ABC')

Solution (Python):
s = input()
if s == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
S = input()
 
if S == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
x=input()
if x=="ABC":
    print("ARC")
elif x=="ARC":
    print("ABC")

Solution (Python):
if input() == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
S = input()

if S =="ABC":
    print('ARC')
elif S=="ARC":
    print('ABC')

Solution (Python):
s = input()

if s[1] == 'B':
  print('ARC')
if s[1] == 'R':
  print('ABC')

Solution (Python):
S = input()
if S == 'ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
S = input()
if S == 'ABC':
    print('ARC')
else: print('ABC')

Solution (Python):
s=input()
if s=="ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
print("ABC" if input() == "ARC" else "ARC")

Solution (Python):
S = input()
if S == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
import sys
def input(): return sys.stdin.readline().strip()
def INT(): return int(input())
def MAP(): return map(int, input().split())
def LIST(): return list(map(int, input().split()))

s = input()
if s == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
string = input()
if string.count("B") == 1:
    print("ARC")
else:
    print("ABC")

Solution (Python):
if __name__ == '__main__':
    string=input()
    if string=='ABC':
        print("ARC")
    else:
        print("ABC")

Solution (Python):
n = input()
if n == "ARC":
  print("ABC")
elif n == "ABC":
  print("ARC")

Solution (Python):
s=input()
if s=="ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
s = input()
if s == "ABC":
    print("ARC")
    
elif s == "ARC":
    print("ABC")

Solution (Python):
import math
 
def readInt():
	return int(input())
 
def readInts():
	return list(map(int, input().split()))
 
def readChar():
	return input()

def readChars():
	return input().split()
 
s = readChar()

if s=="ABC":
	print("ARC")
else:
	print("ABC")

Solution (Python):
S = input()
print("ABC") if S == "ARC" else print("ARC")

Solution (Python):
import sys

sys.setrecursionlimit(10 ** 6)
int1 = lambda x: int(x) - 1
p2D = lambda x: print(*x, sep="\n")
def II(): return int(sys.stdin.readline())
def MI(): return map(int, sys.stdin.readline().split())
def LI(): return list(map(int, sys.stdin.readline().split()))
def LLI(rows_number): return [LI() for _ in range(rows_number)]
def SI(): return sys.stdin.readline()[:-1]

def main():
    s=SI()
    if s=="ABC":print("ARC")
    else:print("ABC")

main()

Solution (Python):
S = input()
if S == "ABC":
    print("ARC")
elif S == "ARC":
    print("ABC")

Solution (Python):
S=str(input())
if S=='ABC':
    print ('ARC')
else:
    print ('ABC')

Solution (Python):
s = input()
if s == 'ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
s = str(input())
if s == 'ARC':
  print('ABC')
else:
  print('ARC')

Solution (Python):
S = str(input())
if S == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
s=input()
if(s=="ABC"):
  print("ARC")
else:
  print("ABC")

Solution (Python):
s = input()
if s == "ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
x = input()
if x == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):


string = input()
if string == "ABC":
    print('ARC')
else:
    print('ABC')

Solution (Python):
s = input()
if s[1] == 'B':
  s = 'ARC'
else:
  s = 'ABC'
  
print(s)

Solution (Python):
S=input()

if S == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
s = input()

if s == "ABC":
    print("ARC")
elif s == "ARC":
    print("ABC")

Solution (Python):

"""this is python work script"""
def solve(s):
    """solve problem"""
    if s == 'ABC':
        ans = 'ARC'
    else:
        ans = 'ABC'
    return ans

def main():
    """main function"""
    S = input().rstrip()
    answer = solve(S)
    print(answer)

if __name__ == '__main__':
    main()

Solution (Python):
x=input()
if x == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
S = str(input())

if S[1]=="B":
    print("ARC")

if S[1]=="R":
    print("ABC")

Solution (Python):
s = input()
if s == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
s=input()
if s=="ABC":print("ARC")
else:print("ABC")

Solution (Python):
contest = input()
if contest == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
s = input()
if(s == "ABC"):
    print("ARC")
else:
    print("ABC")

Solution (Python):
S = input()
if S == 'ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
S = input()
if S == "ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
s = input()

if (s == 'ABC'):
    print('ARC')
else:
    print('ABC')

Solution (Python):
N=input()
if N=='ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
print('ABC' if input()=='ARC' else 'ARC')

Solution (Python):
s=input()
if s=="ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
S = input()
if S == "ABC":
    print("ARC")
elif S == "ARC":
    print("ABC")

Solution (Python):
s = input()

if s == 'ABC':
    print('ARC')
elif s == 'ARC':
    print('ABC')

Solution (Python):
print("ABC"if input()=="ARC"else"ARC")

Solution (Python):
S=list(map(str,input()))
if S[1]=="B":
    print("ARC")
elif S[1]=="R":
    print("ABC")

Solution (Python):
txt=input()
if txt == "ABC":
    print("ARC")
elif txt == "ARC":
    print("ABC")

Solution (Python):




s = input()




if s=="ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
s=input()
if s=='ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
S = input()

if S == "ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
S=str(input())
print("ABC" if S[1]=="R" else "ARC")

Solution (Python):
s = input()

if s == "ABC":
    print("ARC")
if s == "ARC":
    print("ABC")

Solution (Python):
s = input()
if s == 'ABC' :
    print('ARC')
else :
    print('ABC')

Solution (Python):
s = input()
if s == 'ABC':
    print("ARC")
else:
    print("ABC")

Solution (Python):
print('ARC' if input() == 'ABC' else 'ABC' )

Solution (Python):
s = input()

if s == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
S = input()
if S == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
a=input()
if a=="ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
S = input()
if S == 'ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
S=str(input())
if S=="ABC":
    print("ARC")
elif S=="ARC":
    print("ABC")
else:
    exit()

Solution (Python):
x = input()
if x == 'ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
str = input()
if(str == 'ABC'):
    print('ARC')
else:
    print('ABC')

Solution (Python):

S = input()

if(S == 'ABC'):
  print('ARC')
else:
  print('ABC')

Solution (Python):
s = input()
if s == "ABC":
  	print("ARC")
else:
  	print("ABC")

Solution (Python):
a = input()

if(a=="ABC"):
  print("ARC")
else:
  print("ABC")

Solution (Python):
a = input()
if a == 'ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
s = str(input())
if s == "ARC":
    print ("ABC")
else:
    print("ARC")

Solution (Python):



from collections import defaultdict, Counter
from functools import lru_cache
from heapq import heappush, heappop
from math import gcd, floor, ceil
from sys import stdin, stdout

def ilist():
    return [int(x) for x in stdin.readline().strip().split(" ")]
def iint():
    return int(stdin.readline().strip())
def istr():
    return stdin.readline().strip()



def solve():
    pass


if __name__ == '__main__':
    s = istr()
    if s == "ABC":
        print("ARC")
    else:
        print("ABC")

Solution (Python):
test = input()

if test == 'ARC':
    print('ABC')
else:
    print('ARC')

Solution (Python):
x=input()
if x=="ABC":
    print("ARC")
elif x=="ARC":
    print("ABC")

Solution (Python):
S = input()
if S == "ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
a  = input()
if 'R' in a:
  print('ABC')
else:
  print('ARC')

Solution (Python):
s = input()
if s == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
import sys
import math
import bisect

def main():
    if input() == 'ABC':
        print('ARC')
    else:
        print('ABC')

if __name__ == "__main__":
    main()

Solution (Python):
s = str(input())

if s == "ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
S = input()
if S == 'ABC':
  print('ARC')
if S == 'ARC':
  print('ABC')

Solution (Python):
S = input()

if S[1] == 'B':
    print('ARC')
elif S[1] == 'R':
    print('ABC')

Solution (Python):
S = input()
if S == 'ABC':
    print('ARC')
else:
    print('ABC')

Solution (Python):
s=input()
if s=="ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
n=input()
if n=="ABC":
    print("ARC")
else:
    n=="ARC"
    print("ABC")

Solution (Python):
s=input()
if s=="ABC":
  print("ARC")
else:
  print("ABC")

Solution (Python):
s = input()
print('ARC' if s == 'ABC' else 'ABC')

Solution (Python):
S = input()
if S=='ABC':
    print('ARC')
else:
    print("ABC")

Solution (Python):

from collections import deque, defaultdict
from itertools import combinations, combinations_with_replacement
import bisect
from math import factorial, sqrt, log, ceil, floor

def main():
    
    S = input().strip()
    if S == 'ARC':
        print("ABC")
    else:
        print("ARC")

if __name__ == '__main__':
    main()

Solution (Python):
print('ABCARC'.replace(input(),''))

Solution (Python):
S = input()
if S == "ABC":
    print("ARC")
else:
    print("ABC")

Solution (Python):
S =input()
if S == "ARC":
    print("ABC")
else:
    print("ARC")

Solution (Python):
s = input()
if s == 'ABC':
  print('ARC')
else:
  print('ABC')

Solution (Python):
inputStr = input()
if(inputStr == "ABC"):
    print("ARC")
else:
    print("ABC")

Solution (Python):
S=input()
if S=="ABC":
  print("ARC")
else:
  print("ABC")