int d = 700;
void setup() {
pinMode(9, OUTPUT);
pinMode(8, OUTPUT);
pinMode(7, OUTPUT);
pinMode(6, OUTPUT);
pinMode(5, OUTPUT);
pinMode(4, OUTPUT);
pinMode(3, OUTPUT);
pinMode(2, OUTPUT);

}

void loop() {
  


 digitalWrite(9, HIGH);
digitalWrite(8, HIGH);
digitalWrite(7, HIGH);
delay(d);

digitalWrite(9, LOW);
digitalWrite(6, HIGH);
delay(d);

digitalWrite(8, LOW);
digitalWrite(5, HIGH);
delay(d);

digitalWrite(7, LOW);
digitalWrite(4, HIGH);
delay(d);

digitalWrite(6, LOW);
digitalWrite(3, HIGH);
delay(d);

digitalWrite(5, LOW);
digitalWrite(2, HIGH);
delay(d);


 //note: add delay if doesnt work

digitalWrite(5, HIGH);
digitalWrite(2, LOW);
delay(d);

digitalWrite(6, HIGH);
digitalWrite(3, LOW);
delay(d);

digitalWrite(7, HIGH);
digitalWrite(4, LOW);
delay(d);

digitalWrite(8, HIGH);
digitalWrite(9, HIGH);
digitalWrite(5, LOW);
delay(d);

digitalWrite(6, LOW);
digitalWrite(9,LOW);
delay(d);



}