void setup() 
{
pinMode(2,OUTPUT);
pinMode(3,OUTPUT);
pinMode(4,OUTPUT);
pinMode(5,OUTPUT);
pinMode(6,OUTPUT);
pinMode(7,OUTPUT);
pinMode(8,OUTPUT);
pinMode(9,OUTPUT);
pinMode(10,OUTPUT);
}

void loop() 
{
digitalWrite(2, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(10, HIGH);
  delay(2000); 

  digitalWrite(2, LOW);
  digitalWrite(5, LOW);
  digitalWrite(10, LOW);
  digitalWrite(9, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(2, HIGH);
  delay(2000);

  digitalWrite(9, LOW);
  digitalWrite(6, LOW );
  digitalWrite(2, LOW );
  digitalWrite(8, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(2, HIGH);
  delay(2000);
  digitalWrite(8, LOW );
  digitalWrite(7, LOW );
  digitalWrite(2, LOW);
  digitalWrite(8, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(3, HIGH);
  delay(2000);
  digitalWrite(8, LOW );
  digitalWrite(6, LOW );
  digitalWrite(3, LOW );
  digitalWrite(5, HIGH );
  digitalWrite(4, HIGH );
  digitalWrite(8, HIGH );
  delay(2000);
  digitalWrite(5, LOW );
  digitalWrite(4, LOW );
  digitalWrite(8, LOW );
  digitalWrite(4, HIGH );
  digitalWrite(9, HIGH );
  digitalWrite(5, HIGH );
  delay(2000);
  digitalWrite(4, LOW );
  digitalWrite(9, LOW );
  digitalWrite(5, LOW );
  delay(2000);

 
}