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(){
    int n, q;
    long int sum=0, count[100001]={0}, p;
    scanf("%d", &n);
    for(int i=0; i<n; i++){
        scanf("%ld", &p);
        count[p]++;
        sum = sum + p;
    }
    scanf("%d", &q);
    int b[100001], c[100001];
    for(int i=0; i<q; i++){
        scanf("%d%d", &b[i], &c[i]);
        sum = sum + (c[i]-b[i])*count[b[i]];
        printf("%ld\n", sum);
        count[c[i]] = count[c[i]] + count[b[i]];
        count[b[i]] = 0;
    }
}