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: Runtime Error)

import java.util.*;

public class Main {
    public static void main(String[] args) {
        // Your code here!
        
       Scanner sc=new Scanner(System.in);
       int n=sc.nextInt();
       int k=sc.nextInt();
       int a[]=new int[n];
       for(int i=0;i<n;i++)
       {
           a[i]=sc.nextInt();
       }
       
       int sum=0;
      Arrays.sort(a);
      for(int j=0;j<k;j++)
      {
        sum=sum+a[j];
      }
      
      System.out.println(sum);
       
       
       
       
    }
}