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 (GCC 9.2.1) (judge verdict: Accepted)

#include <stdio.h>
#include <string.h>

int main(void) {
  int ans,i,m;
  ans=0;
  char a;
  scanf("%c",&a);
  if(a=='A'||a=='B'||a=='C'||a=='D'||a=='F'||a=='E'||a=='F'||a=='G'||a=='H'||a=='I'||a=='J'||a=='K'||a=='L'||a=='M'||a=='S'||a=='O'||a=='P'||a=='Q'||a=='R'||a=='S'||a=='T'||a=='U'||a=='V'||a=='W'||a=='X'||a=='Y'||a=='Z')
  {
    printf("A");
  }
  else
  {
    printf("a");
  }
  return 0;
}