void setup() {
  pinMode( 6, OUTPUT);
  pinMode( 7, OUTPUT);
  pinMode( 8, OUTPUT);
  pinMode( 9, OUTPUT);
  pinMode( 10, OUTPUT);

}

void loop() {
  digitalWrite( 6, HIGH);   
  delay(200);                       
  digitalWrite( 6, LOW);    
  delay(200);

  digitalWrite( 7, HIGH);   
  delay(200);                       
  digitalWrite( 7, LOW);    
  delay(200);  

  digitalWrite( 8, HIGH);   
  delay(200);                       
  digitalWrite( 8, LOW);    
  delay(200);  

  digitalWrite( 9, HIGH);   
  delay(200);                       
  digitalWrite( 9, LOW);    
  delay(200);      

  digitalWrite( 10, HIGH);   
  delay(200);                       
  digitalWrite( 10, LOW);    
  delay(200); 

  digitalWrite(6, HIGH);
  digitalWrite(7, HIGH); 
  digitalWrite(8, HIGH);
  digitalWrite( 9, HIGH); 
  digitalWrite( 10, HIGH);  
  delay(400);
  
digitalWrite(6, LOW);
digitalWrite(7, LOW);
digitalWrite( 8, LOW);
digitalWrite( 9, LOW);
digitalWrite( 10, LOW);
delay(400);
     

}