void setup() {
  // put your setup code here, to run once:
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(9, LOW);
  for(int i=2;i<=8;i++){
    digitalWrite(i, LOW);
  }
  digitalWrite(8, HIGH);
  delay(1000);
   for(int i=2;i<=8;i++){
    digitalWrite(i, HIGH);
  } 
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  delay(1000);
  for(int i=2;i<=8;i++){
    digitalWrite(i, LOW);
  }
  digitalWrite(7, HIGH);
  digitalWrite(4, HIGH);
  delay(1000);
  for(int i=2;i<=8;i++){
    digitalWrite(i, LOW);
  }
  digitalWrite(7, HIGH);
  digitalWrite(6, HIGH);
  delay(1000);
  for(int i=2;i<=8;i++){
    digitalWrite(i, LOW);
  }
  digitalWrite(2, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(5, HIGH);
  delay(1000);
  for(int i=2;i<=8;i++){
    digitalWrite(i, LOW);
  }
  digitalWrite(3, HIGH);
  digitalWrite(6, HIGH);
  delay(1000);
  for(int i=2;i<=8;i++){
    digitalWrite(i, LOW);
  }
  digitalWrite(3, HIGH);
  delay(1000);
  for(int i=2;i<=4;i++){
    digitalWrite(i, LOW);
  }
  for(int i=5;i<=8;i++){
    digitalWrite(i, HIGH);
  }
  delay(1000);
  for(int i=2;i<=8;i++){
    digitalWrite(i, LOW);
  }
  delay(1000);
  for(int i=2;i<=8;i++){
    digitalWrite(i, LOW);
  }
  digitalWrite(6, HIGH);
  delay(1000);
  
}