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 k;//number of buy
  int n;//number of fruit
  scanf("%d %d",&n,&k);
  int p[n];
  for(int i = 0;i < n;i++){
    scanf("%d",&p[i]);
  }
  int tmp;
  for(int i = 0;i < n;i++){
    for(int j = 0;j < n - 1;j++){
      if(p[j] > p[j + 1]){
        tmp = p[j];
        p[j] = p[j + 1];
        p[j + 1] = tmp;
      }
    }
  }
  int sum;
  for(int i = 0;i < k;i++){
    sum = sum + p[i];
  }
  printf("&d",sum);
  return 0;
}