#include <LiquidCrystal.h>

LiquidCrystal lcd(8,9,4,5,6,7);

void setup(){
  lcd.begin(16,2);
  lcd.print("Hola Mundo");
}

void loop(){
  lcd.setCursor(0,1);
  lcd.print(millis()/1000);
  lcd.print(" Segundos");
  delay(100);
}