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 Java (OpenJDK 11.0.6) (judge verdict: Wrong Answer)

import java.util.Scanner;

class Main{
  public static void main(String[] args){
    Scanner scan = new Scanner(System.in);
    String α = scan.nextLine();
    if(α == "a" ||
       α == "b" ||
       α == "c" ||
       α == "d" ||
       α == "e" ||
       α == "f" ||
       α == "g" ||
       α == "h" ||
       α == "i" ||
       α == "j" ||
       α == "k" ||
       α == "l" ||
       α == "m" ||
       α == "n" ||
       α == "o" ||
       α == "p" ||
       α == "q" ||
       α == "r" ||
       α == "s" ||
       α == "t" ||
       α == "u" ||
       α == "v" ||
       α == "w" ||
       α == "x" ||
       α == "y" ||
       α == "z"
       ){
      System.out.println("a");
    }else{
      System.out.println("A");
    }
  }
}