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 C (Clang 10.0.0) (judge verdict: Accepted)

#include<stdio.h>

int main()
{
char a[2];
  scanf("%c",a);

  //printf("%c",a[0]);
  
  if (a[0] >= 'A' && a[0] <='Z')
  {
  printf("A");
    return 0;
  }
  printf("a");
  
  return 0;
  
}