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;
 
public class Main {
    public static void main(String[] args){
        Scanner in = new Scanner(System.in);
        String S = in.nextLine();
      String str1 = new String(S);
          if(Character.isUpperCase(str1.charAt( 0 ))){
            String T = str1.toLowerCase();
            System.out.println(T);
          }
         else {String T = str1.toUpperCase();
           System.out.println(T);
                }
        }
    }