#include <stdio.h>
#include <stdlib.h>
 
int main(void) {
  	char lettre_choisi, lettre='a';
	int alphabet;
  	printf("Entrez une minuscule :");
  	scanf("%c",&lettre_choisi);
	for (alphabet=0;alphabet<26;alphabet++){
		if (lettre==lettre_choisi){
			printf("[%c]",lettre_choisi);
		} else {
			printf("%c",lettre);
		}
		lettre++;
	}
	printf("\n");
  	return EXIT_SUCCESS;
}