const int ssdNum[10][7] = {
  {1,1,1,1,1,1,0}, // 0
  {0,1,1,0,0,0,0}, // 1
  {1,1,0,1,1,0,1}, // 2
  {1,1,1,1,0,0,1}, // 3
  {0,1,1,0,0,1,1}, // 4
  {1,0,1,1,0,1,1}, // 5
  {1,0,1,1,1,1,1}, // 6
  {1,1,1,0,0,0,0}, // 7
  {1,1,1,1,1,1,1}, // 8
  {1,1,1,1,0,1,1}  // 9
};

void setup() {
  // Set pins 2 through 5 as outputs for LEDs
  for (int i = 2; i < 6; i++) {
    pinMode(i, OUTPUT);
  }

  // Set pins 6 through 12 as outputs for 7-segment display
  for (int j = 6; j < 13; j++) {
    pinMode(j, OUTPUT);
  }
}

void loop() {
  // Loop from 0 to 9
  for (int count = 0; count < 10; count++) {
    // Display count on LEDs
    for (int i = 2; i < 6; i++) {
      digitalWrite(i, (count >> (i - 2)) & 1); // Display count in binary on LEDs
    }

    // Display count on 7-segment display
    displayNumber(count);

    delay(1000); // Delay for 1 second
  }
}

// Function to display a number (0-9) on the 7-segment display
void displayNumber(int number) {
  for (int j = 6; j < 13; j++) {
    digitalWrite(j, !ssdNum[number][j-6]); // Set segment pins according to the number to be displayed
  }
}