#include "WiFi.h"
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C  lcd (0x27, 16, 2);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  Serial.println("Calculator for Addition!");
  lcd.init();
  lcd.backlight();
}

void calculator() 
{
  Serial.print("Enter 1st number: ");
  int num1=Serial.readString().toInt();
  Serial.println(num1);
  lcd.setCursor(0,0);
  lcd.print(num1);

  lcd.setCursor(5,0);
  lcd.print("+");

  Serial.print("Enter 2nd number: ");
  int num2=Serial.readString().toInt();
  Serial.println(num2);
  lcd.setCursor(8,0);
  lcd.print(num2);

  int result= num1 + num2;
  lcd.setCursor(3,1);
  lcd.print(result);

  delay(2000);
  lcd.clear();
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(1000);
  calculator();
}