#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);

int x = 12;

void setup() {
  // Init

  Serial.begin(9600);

  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);
  delay(1000);

  for (int i = 0; i <= 19; i++)
  {
    lcd.print(i % 10);
    delay(300);
    lcd.setCursor(i, 0);
    lcd.print(" ");
  }

  lcd.clear();
  delay(1000);

  for (int i = 0; i <= 19; i++)
  {
    lcd.print(i % 10);
    delay(300);
  }

  //delay(500);
  lcd.noBacklight();
  delay(500);
  lcd.backlight();
  delay(500);

  Serial.print(" ");

}


void loop() {
  int x,temp;
  if(Serial.available()>0)
  {
    x=Serial.parseInt();
   // if (temp!=0)
    //  x=temp;
    lcd.setCursor(0,1);
    lcd.print("          ");
    lcd.setCursor(0,1);
    lcd.print(x);
  }


}