def Decimal_to_Int(s:str,k:int,base=10):
    """

    s:小数点を含むかもしれない数
    k:小数点以下高々何位までか?
    base:基数
    """

    if "." not in s:
        return int(s,base)*pow(base,k)

    m=s.index(".")
    return int(s.replace(".",""))*pow(base,k-(len(s)-m-1))
#==================================================
from math import gcd
alpha=Decimal_to_Int(input(),3)
beta=1000

g=gcd(alpha,beta)
alpha//=g; beta//=g

if (alpha+beta)%2==0:
    X="A"
else:
    if beta%2==0:
        X="C"
    else:
        X="B"

K=(alpha-1)+(beta-1)+abs(alpha-beta)//2+abs(alpha+beta)//2
print(X,K)