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 Rust (1.42.0) (judge verdict: Accepted)

use proconio::input;                                                                                                         
                                                                                                                             
fn a() {                                                                                                                     
    input! {                                                                                                                 
        alpha: char                                                                                                          
    }                                                                                                                        
                                                                                                                             
    if alpha.is_ascii_lowercase() {                                                                                          
        println!("a");                                                                                                       
    }                                                                                                                        
    else {                                                                                                                   
        println!("A");                                                                                                       
    }                                                                                                                        
}

fn main() {
    a();
}