Background

Little A loves the letter A. He wants to know how many times the letter A appears in a message sent by his friend (counting both uppercase and lowercase).

Description

Write a program that inputs a string $s$ containing spaces and outputs the number of times the letter A appears (counting both uppercase and lowercase).

Input

A single line containing the string $s$ with spaces.

Output

Output the count of the letter A (case-insensitive) in the string $s$.

How are you today?

2

Hello, Little A! The weather's great, let's go to the park and play badminton.

7

Constraints

For $20\%$ of the data, the string $s$ contains only lowercase letters.

For $100\%$ of the data, $|s| \leq 100$ (the length of $s$ is at most $100$).