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 <bits/stdc++.h>
using namespace std;

int main(void){
 
  /* 文字 */
  char moji;
  cin >> moji;
 
  /* アルファベットの小文字か大文字かを判定 */
  if((moji>= 'a') && (moji<='z')){
    cout << "a";
  }
  else if((moji>= 'A') && (moji<='Z')){
    cout << "A";
  }
  return 0;
}