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: Wrong Answer)

    #include<stdio.h>
     
     
    int main(void){
    	char a;
      
        scanf("%d",&a);
      
      	if("a" <=a && a<="z"  ){
        	a=a-('a'-'A');
        }else if("A" <=a && a<="Z"  ){
        	a=a+('a'-'A');
        }
    	
        printf("%c",a);
      
        return 0;
     
    }