// Include the necessary libraries
#include <LiquidCrystal.h>

// Define the LCD pins
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

// Define the button pins
const int addButtonPin = 6;
const int subtractButtonPin = 7;
const int multiplyButtonPin = 8;
const int divideButtonPin = 9;

// Define the potentiometer pins
const int firstNumberPotPin = A0;
const int secondNumberPotPin = A1;

// Variables to store the numbers and result
float firstNumber = 0;
float secondNumber = 0;
float result = 0;

// Variables to store the button states
int addButtonState = 0;
int subtractButtonState = 0;
int multiplyButtonState = 0;
int divideButtonState = 0;

void setup() {
  // Set up the LCD
  lcd.begin(16, 2);
  
  // Set up the button pins as inputs
  pinMode(addButtonPin, INPUT);
  pinMode(subtractButtonPin, INPUT);
  pinMode(multiplyButtonPin, INPUT);
  pinMode(divideButtonPin, INPUT);
  
  // Set up the potentiometer pins as inputs
  pinMode(firstNumberPotPin, INPUT);
  pinMode(secondNumberPotPin, INPUT);
}

void loop() {
  // Read the button states
  addButtonState = digitalRead(addButtonPin);
  subtractButtonState = digitalRead(subtractButtonPin);
  multiplyButtonState = digitalRead(multiplyButtonPin);
  divideButtonState = digitalRead(divideButtonPin);
  
  // Read the potentiometer values
  firstNumber = analogRead(firstNumberPotPin);
  secondNumber = analogRead(secondNumberPotPin);
  
  // Convert the potentiometer values to numbers between 0 and 100
  firstNumber = map(firstNumber, 0, 1023, 0, 100);
  secondNumber = map(secondNumber, 0, 1023, 0, 100);
  
  // Perform the calculation based on the button pressed
  if (addButtonState == HIGH) {
    result = firstNumber + secondNumber;
  } else if (subtractButtonState == HIGH) {
    result = firstNumber - secondNumber;
  } else if (multiplyButtonState == HIGH) {
    result = firstNumber * secondNumber;
  } else if (divideButtonState == HIGH) {
    result = firstNumber / secondNumber;
  }
  
  // Display the result on the LCD
  lcd.setCursor(0, 0);
  lcd.print("Result: ");
  lcd.setCursor(0, 1);
  lcd.print(result);
  
  // Delay for stability
  delay(100);
}