int brightness=255;
void setup() {

  pinMode(11, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(3, OUTPUT);
  // put your setup code here, to run once:
}

void loop() {

   brightness=255;
  analogWrite(11,brightness);
  delay(300);
  brightness=127;
  analogWrite(6,brightness);
  delay(300);
   brightness=64;
  analogWrite(3,brightness);
  delay(300);
  brightness=0;
  analogWrite(11,brightness);
  analogWrite(6,brightness);
analogWrite(3,brightness);
delay(900);
  



  // put your main code here, to run repeatedly:

}