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;
#define ll long long
#define pb push_back
#define x first
#define y second
int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    //assert(freopen("input.txt","r",stdin));
    //assert(freopen("output.txt","w",stdout));
    char c;
    cin>>c;
    if(c>=65&&c<=90)
        cout<<'A';
    else
        cout<<'a';
    return 0;
}