void setup() {
   pinMode(0, OUTPUT);
   pinMode(1, OUTPUT);
   pinMode(2, OUTPUT);
   pinMode(3, OUTPUT);
   pinMode(4, OUTPUT);
   pinMode(5, OUTPUT);
   pinMode(6, OUTPUT);
   pinMode(7, OUTPUT);
}

void loop() {
  //0
  digitalWrite(0, 0);
  digitalWrite(1, 0);
  digitalWrite(2, 0);
  digitalWrite(3, 0);
  digitalWrite(4, 0);
  digitalWrite(5, 0);
  digitalWrite(6, 1);
  digitalWrite(7, 1);
  delay(500);

  //1
  digitalWrite(0, 1);
  digitalWrite(1, 0);
  digitalWrite(2, 0);
  digitalWrite(3, 1);
  digitalWrite(4, 1);
  digitalWrite(5, 1);
  digitalWrite(6, 1);
  digitalWrite(7, 1);
  delay(500);

//2
  digitalWrite(0, 0);
  digitalWrite(1, 0);
  digitalWrite(2, 1);
  digitalWrite(3, 0);
  digitalWrite(4, 0);
  digitalWrite(5, 1);
  digitalWrite(6, 0);
  digitalWrite(7, 1);
  delay(500);

//3
  digitalWrite(0, 0);
  digitalWrite(1, 0);
  digitalWrite(2, 0);
  digitalWrite(3, 0);
  digitalWrite(4, 1);
  digitalWrite(5, 1);
  digitalWrite(6, 0);
  digitalWrite(7, 1);
  delay(500);

//4
  digitalWrite(0, 1);
  digitalWrite(1, 0);
  digitalWrite(2, 0);
  digitalWrite(3, 1);
  digitalWrite(4, 1);
  digitalWrite(5, 0);
  digitalWrite(6, 0);
  digitalWrite(7, 1);
  delay(500);

//5
  digitalWrite(0, 0);
  digitalWrite(1, 1);
  digitalWrite(2, 0);
  digitalWrite(3, 0);
  digitalWrite(4, 1);
  digitalWrite(5, 0);
  digitalWrite(6, 0);
  digitalWrite(7, 1);
  delay(500);

//6
  digitalWrite(0, 0);
  digitalWrite(1, 1);
  digitalWrite(2, 0);
  digitalWrite(3, 0);
  digitalWrite(4, 0);
  digitalWrite(5, 0);
  digitalWrite(6, 0);
  digitalWrite(7, 1);
  delay(500);

//7
  digitalWrite(0, 0);
  digitalWrite(1, 0);
  digitalWrite(2, 0);
  digitalWrite(3, 1);
  digitalWrite(4, 1);
  digitalWrite(5, 1);
  digitalWrite(6, 1);
  digitalWrite(7, 1);
  delay(500);

//8
  digitalWrite(0, 0);
  digitalWrite(1, 0);
  digitalWrite(2, 0);
  digitalWrite(3, 0);
  digitalWrite(4, 0);
  digitalWrite(5, 0);
  digitalWrite(6, 0);
  digitalWrite(7, 1);
  delay(500);

//9
  digitalWrite(0, 0);
  digitalWrite(1, 0);
  digitalWrite(2, 0);
  digitalWrite(3, 0);
  digitalWrite(4, 1);
  digitalWrite(5, 0);
  digitalWrite(6, 0);
  digitalWrite(7, 1);
  delay(500);

//nic
  digitalWrite(0, 1);
  digitalWrite(1, 1);
  digitalWrite(2, 1);
  digitalWrite(3, 1);
  digitalWrite(4, 1);
  digitalWrite(5, 1);
  digitalWrite(6, 1);
  digitalWrite(7, 1);
  delay(500);

}