#include <LiquidCrystal.h>

LiquidCrystal lcd(18,5,17,16,4,0);

void setup(){
  lcd.begin(16,2);
  lcd.print("hello,world!");
}
void loop(){
  lcd.clear();
  lcd.setCursor(5,0);
  lcd.print("hello");
  lcd.setCursor(5,1);
  lcd.print("world");
  delay(1000);
}