#include <LiquidCrystal.h>
const int rs=12, en=11, d4=5, d5=4, d6=3, d7=2;
LiquidCrystal lcd(rs,en,d4,d5,d6,d7);

void setup() {
  lcd.clear();
  lcd.begin(16,2);
  lcd.setCursor(1,0);
  lcd.print("hello");
  lcd.setCursor(1,1);
  lcd.print("21nwef");
 }

void loop() {
    for(int positionCounter = 1; positionCounter++;){
    lcd.scrollDisplayLeft();
    delay(100);
  }
    delay(100);
  }