Print _The Last num.

void setup () {
  print_star (1);
  print_star (2);
  print_star (3);
  print_star (4);
  print_star (5);
}

void print_star (int count) {
  for (int i =1; i<= (count-1); i++) {
      print ("_");
  }
  println (count);
}