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

LiquidCrystal_I2C lcd(0x27, 20, 4);  // set the LCD address to 0x27 for a 16 chars and 2 line display

void setup() {
  lcd.begin(16, 2);
  lcd.init();                   // Initialize the LCD
  lcd.backlight();              // Turn on the backlight
  // you can now interact with the LCD, e.g.:
  lcd.print("Hello Masud!");
}

void loop() {
  // ...
}