Problem:
Score : 100 points

Problem Statement

An uppercase or lowercase English letter \alpha will be given as input.
If \alpha is uppercase, print A; if it is lowercase, print a.

Constraints

\alpha is an uppercase (A - Z) or lowercase (a - z) English letter.

Input

Input is given from Standard Input in the following format:

α

Output

If \alpha is uppercase, print A; if it is lowercase, print a.

Sample Input 1

B

Sample Output 1

A

B is uppercase, so we should print A.

Sample Input 2

a

Sample Output 2

a

a is lowercase, so we should print a.

Solution in PHP (7.4.4) (judge verdict: Wrong Answer)

<?php
 fscanf(STDIN, '%d %d', $a, $b);
 fscanf(STDIN, '%d %d %d %f', $c, $d, $e, $f);
 $array = [$c, $d , $e, $f];
 $sortArray = sort($array);
 $price = 0;
 for($i = 0; $i < $b; $i++) {
   $price += $array[$i]; 
 } 
  echo $price;
?>