void setup()
  {
    int out_led = 0;
    for ( out_led = 6; out_led < 11; out_led++)
    pinMode( out_led,OUTPUT);
  }

void loop()
    {
      int num_led = 0;
      for ( num_led = 6; num_led< 11; num_led++)
        {
          digitalWrite(num_led, HIGH) ;
          delay (150) ;
          digitalWrite(num_led, LOW);
        }
    }