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 Python (3.8.2) (judge verdict: Accepted)

string = input()

a = ord('a')
z = ord('z')
small = [i for i in range(a,z+1)]
A = ord('A')
Z = ord('Z')
big = [i for i in range(A,Z+1)]

if ord(string) in small:
    print('a')
else:
    print('A')