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: Runtime Error)

import numpy as np

N = int(input())
a = np.fromstring(input(), sep=" ", dtype=np.int64)
# b = np.bitwise_xor.reduce(a)
c = np.bitwise_xor(a, 0)
print(*c, sep=" ")

# for n in range(N):
#     print(np.bitwise_xor.reduce(a) ^ a[n])