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.*;
class Main
{
   public static void main(String[] args)
   {
     Scanner sc=new Scanner(System.in);
     int x=sc.nextInt();
     int arr[]=new int[100000];
     int sum=0;
    
     for(int i=0;i<x;i++)
    {
      int temp=sc.nextInt();
        arr[temp]++;
        sum+=temp;
    }
     int op=sc.nextInt();
     
     for(int i=0;i<op;i++)
     {
       int a=sc.nextInt();
       int b=sc.nextInt();
       int add=0;
       if(arr[a]!=0)
       {
          arr[b]+=arr[a];
         
       sum+=(b-a)*arr[a];
        arr[a]=0;
       }
       System.out.println(sum);
     }
     
       
   }
}