Balanced String Checker

Given a string s containing only the characters 'a' and 'b', determine if the string is balanced. A string is considered balanced if the number of occurrences of 'a' is equal to the number of occurrences of 'b'. In mathematical notation, a string is balanced if $$\#(a) = \#(b)$$.

Your task is to implement a program that reads the string from standard input and prints True if the string is balanced, otherwise prints False.

Note: The input string may be empty. An empty string is considered balanced.

inputFormat

The input consists of a single line containing a string composed only of characters 'a' and 'b'. The string may be empty.

outputFormat

Output True if the string is balanced; otherwise, output False.## sample

ab

True