#include <LiquidCrystal.h>
 

LiquidCrystal lcd(19, 23, 13, 12, 14, 15);
 
void setup() {
  
  lcd.begin(16, 2);
  
  lcd.print("M1");
}
 
void loop() {

  lcd.setCursor(0, 1);
  
  lcd.print(millis());
}