int pinnumber=9;

void setup() {
  // put your setup code here, to run once:
pinMode(pinnumber,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(pinnumber,HIGH);
delay(300);
digitalWrite(pinnumber,LOW);
delay(500);
digitalWrite(pinnumber,HIGH);
delay(300);
digitalWrite(pinnumber,LOW);
delay(500);
digitalWrite(pinnumber,HIGH);
delay(300);
digitalWrite(pinnumber,LOW);
delay(500);

//...
digitalWrite(pinnumber,HIGH);
delay(1000);
digitalWrite(pinnumber,LOW);
delay(1500);
digitalWrite(pinnumber,HIGH);
delay(1000);
digitalWrite(pinnumber,LOW);
delay(1500);
digitalWrite(pinnumber,HIGH);
delay(1000);
digitalWrite(pinnumber,LOW);
delay(1500);

//...
digitalWrite(pinnumber,HIGH);
delay(300);
digitalWrite(pinnumber,LOW);
delay(500);
digitalWrite(pinnumber,HIGH);
delay(300);
digitalWrite(pinnumber,LOW);
delay(500);
digitalWrite(pinnumber,HIGH);
delay(300);
digitalWrite(pinnumber,LOW);
delay(500);

//...
digitalWrite(pinnumber,HIGH);
delay(1000);
digitalWrite(pinnumber,LOW);
delay(1500);
digitalWrite(pinnumber,HIGH);
delay(1000);
digitalWrite(pinnumber,LOW);
delay(1500);
digitalWrite(pinnumber,HIGH);
delay(1000);
digitalWrite(pinnumber,LOW);
delay(1500);

//...
digitalWrite(pinnumber,HIGH);
delay(300);
digitalWrite(pinnumber,LOW);
delay(500);
digitalWrite(pinnumber,HIGH);
delay(300);
digitalWrite(pinnumber,LOW);
delay(500);
digitalWrite(pinnumber,HIGH);
delay(300);
digitalWrite(pinnumber,LOW);
delay(500);

//...
digitalWrite(pinnumber,HIGH);
delay(1000);
digitalWrite(pinnumber,LOW);
delay(1500);
digitalWrite(pinnumber,HIGH);
delay(1000);
digitalWrite(pinnumber,LOW);
delay(1500);
digitalWrite(pinnumber,HIGH);
delay(1000);
digitalWrite(pinnumber,LOW);
delay(1500);

}