#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd (0x27,20,4);
void setup() {
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.print("HELLO ALI");
  Serial.begin(9600);// put your setup code here, to run once:
}

void loop() {
  lcd.setCursor(0,3);
  lcd.print(millis()/1000);// put your main code here, to run repeatedly:

}