#include <LiquidCrystal_I2C.h>
#include <Wire.h>
LiquidCrystal_I2C lcd(0x27,20,4);
void setup() {
  // put your setup code here, to run once:
lcd.begin(20,4);
lcd.backlight();
}
void loop() {
  // put your main code here, to run repeatedly:
lcd.setCursor(0,0);
lcd.print("This is covid_19");
delay(5000);
lcd.clear();
lcd.setCursor(0,1);
lcd.print("pendmic always");
delay(5000);
lcd.clear();
lcd.setCursor(0,0);
lcd.print("wear the mask");
delay(5000);
lcd.clear();
}