#include <Wire.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 20, 4);

void setup() {
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.print("Line1");
  lcd.setCursor(0,1);
  lcd.print("Line2");
  lcd.setCursor(0,2);
  lcd.print("Line3");
  lcd.setCursor(0,3);
  lcd.print("Line4");
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}