#define A_PIN 12  // Define the input pin for A
#define B_PIN 13  // Define the input pin for B
#define C_PIN 14  // Define the output pin for C
#define D_PIN 15  // Define the output pin for D

bool CState = LOW; // State of output C
bool DState = LOW; // State of output D

void setup() {
  pinMode(A_PIN, INPUT);
  pinMode(B_PIN, INPUT);
  pinMode(C_PIN, OUTPUT);
  pinMode(D_PIN, OUTPUT);

  digitalWrite(C_PIN, LOW);  // Initialize C output to low
  digitalWrite(D_PIN, LOW);  // Initialize D output to low
}

void loop() {
  // Handle A input logic
  if (digitalRead(A_PIN) == HIGH) {
    digitalWrite(C_PIN, HIGH);
    delay(2000);
    digitalWrite(C_PIN, LOW);
    delay(2000);
  } else {
    digitalWrite(C_PIN, LOW);
  }

  // Handle B input logic
  if (digitalRead(B_PIN) == HIGH) {
    toggleOnce(D_PIN);  // Toggle D output once
  } else {
    toggleTwice(C_PIN);  // Toggle C output twice
  }
}

void toggleOnce(int pin) {
  digitalWrite(pin, HIGH);
  delay(500);
  digitalWrite(pin, LOW);
}

void toggleTwice(int pin) {
  digitalWrite(pin, HIGH);
  delay(500);
  digitalWrite(pin, LOW);
  delay(500);
  digitalWrite(pin, HIGH);
  delay(500);
  digitalWrite(pin, LOW);
}