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 Fortran (GNU Fortran 9.2.1) (judge verdict: Accepted)

program alphabet
    implicit none
    character alpha
    read *, alpha
    if(alpha >= 'a' .and. alpha <= 'z')then
        print *, 'a'
    else if(alpha >= 'A' .and. alpha <= 'Z')then
        print *, 'A'
    end if
end program