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

LiquidCrystal_I2C lcd(0x27,16,2);
void setup(){
  Serial.begin(9600);
  Serial.println("Calculator for addition");
  lcd.init();
  lcd.backlight();
}

void loop(){
  delay(2000);
  calc();
}
void calc(){
  Serial.println("Enter 1st number");
  int num1 = Serial.readString().toInt();
  lcd.setCursor(0,0);
  lcd.print(num1);
  Serial.println(num1);
  lcd.setCursor(5,0);
  lcd.print("+");
  delay(2000);
  Serial.println("Enter 2nd number");
  int num2 = Serial.readString().toInt();
  lcd.setCursor(8,0);
  lcd.print(num2);
  Serial.println(num2);
  delay(2000);
  lcd.clear();
  int result = num1 + num2;
  lcd.setCursor(1,0);
  lcd.print(result);
  delay(5000);
  lcd.clear();
}