Valid Message Checker

You are given a string s. Your task is to determine whether it is a valid message based on the following rules:

• The number of 'B's in s must be at most one, i.e., $$\#B \leq 1$$.
• The number of 'C's in s must be at most two, i.e., $$\#C \leq 2$$.

If both conditions are satisfied, output True; otherwise, output False.

Examples:

• For s = "AAC", the output should be True.
• For s = "BBC", the output should be False.
• For s = "CCCC", the output should be False.

inputFormat

The input consists of a single line containing the string s.

outputFormat

Output a single line: True if the string s is a valid message according to the rules, otherwise False.

AAC

True