/* premier programme */

#include <stdlib.h>
#include <stdio.h>

int main(void) {
  printf("H\n");
  printf("e\n");
  printf("l\n");
  printf("l\n");
  printf("o\n");
  printf(" \n");
  printf("W\n");
  printf("o\n");
  printf("r\n");
  printf("l\n");
  printf("d\n");
  printf("!\n");
  return EXIT_SUCCESS;
}