const int a = 11;
const int b = 10;
const int f = 12;
const int g = 9;
const int e = 8;
const int d = 7;
const int c = 5;
const int dp = 6;

void setup() {
  // Set all pins as OUTPUT
  pinMode(a, OUTPUT);
  pinMode(b, OUTPUT);
  pinMode(c, OUTPUT);
  pinMode(d, OUTPUT);
  pinMode(e, OUTPUT);
  pinMode(f, OUTPUT);
  pinMode(g, OUTPUT);
  pinMode(dp, OUTPUT);
}

void loop() {
  for (int i = 0; i <= 9; i++) { // Loop through numbers 0 to 9
    displayNumber(i);
    delay(1000); // Wait for 1 second before changing the number
  }
}

void displayNumber(int num) {
  // Turn off all segments first
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
  digitalWrite(dp, LOW);

  // Turn on segments for the given number
  switch (num) {
    case 0:
      digitalWrite(a, HIGH);
      digitalWrite(b, HIGH);
      digitalWrite(c, HIGH);
      digitalWrite(d, HIGH);
      digitalWrite(e, HIGH);
      digitalWrite(f, HIGH);
      digitalWrite(g, LOW);
      break;
    case 1:
      digitalWrite(b, HIGH);
      digitalWrite(c, HIGH);
      break;
    case 2:
      digitalWrite(a, HIGH);
      digitalWrite(b, HIGH);
      digitalWrite(g, HIGH);
      digitalWrite(e, HIGH);
      digitalWrite(d, HIGH);
      break;
    case 3:
      digitalWrite(a, HIGH);
      digitalWrite(b, HIGH);
      digitalWrite(c, HIGH);
      digitalWrite(d, HIGH);
      digitalWrite(g, HIGH);
      break;
    case 4:
      digitalWrite(b, HIGH);
      digitalWrite(c, HIGH);
      digitalWrite(f, HIGH);
      digitalWrite(g, HIGH);
      break;
    case 5:
      digitalWrite(a, HIGH);
      digitalWrite(c, HIGH);
      digitalWrite(d, HIGH);
      digitalWrite(f, HIGH);
      digitalWrite(g, HIGH);
      break;
    case 6:
      digitalWrite(a, HIGH);
      digitalWrite(c, HIGH);
      digitalWrite(d, HIGH);
      digitalWrite(e, HIGH);
      digitalWrite(f, HIGH);
      digitalWrite(g, HIGH);
      break;
    case 7:
      digitalWrite(a, HIGH);
      digitalWrite(b, HIGH);
      digitalWrite(c, HIGH);
      break;
    case 8:
      digitalWrite(a, HIGH);
      digitalWrite(b, HIGH);
      digitalWrite(c, HIGH);
      digitalWrite(d, HIGH);
      digitalWrite(e, HIGH);
      digitalWrite(f, HIGH);
      digitalWrite(g, HIGH);
      break;
    case 9:
      digitalWrite(a, HIGH);
      digitalWrite(b, HIGH);
      digitalWrite(c, HIGH);
      digitalWrite(f, HIGH);
      digitalWrite(g, HIGH);
      break;
  }
}