#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 10, 9, 8, 7);

void setup() {
  lcd.begin(16, 2);
  Serial.begin(9600);
}

void loop() {
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Enter a number:");
  while (!Serial.available()) {} // wait for user input
  int num = Serial.parseInt();   // read user input as integer
  int squared = num * num;       // calculate square
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Squared: ");
  lcd.setCursor(0, 1);
  lcd.print(squared);
  delay(2000);
}
//WELCOME