#include <LiquidCrystal_I2C.h> 
#define I2C_ADDR    0x27 
#define LCD_COLUMNS 20 
#define LCD_LINES   4 
LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES); 
void setup() { 
  lcd.init();
  lcd.backlight();
  lcd.print("hello");
  for(int i = 0; i < 16; i++)
  { 
    lcd.scrollDisplayRight();
    delay(200);
  }
  lcd.clear();
  lcd.setCursor(15,1);
  lcd.print("who are you ?");
for(int i = 0; i < 16; i++)
  {
    lcd.scrollDisplayLeft();
    delay(200);
  }

  lcd.clear();
  lcd.setCursor(15,1);
  lcd.print("what is your Name");
  for(int i = 0; i < 16; i++)
  {
    lcd.scrollDisplayLeft();
    delay(200);
  }
  lcd.clear();
  lcd.setCursor(15,1);
  lcd.print("?");
  for(int i = 0; i < 16; i++)
  {
    lcd.scrollDisplayLeft();
    delay(200);
  }
   } 
void loop() {
  

 }