void setup() {
  // put your setup code here, to run once:
pinMode(1, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(1, HIGH);
delay(100);  
digitalWrite(1, LOW);
delay(10);
digitalWrite(2, HIGH);
delay(100);
digitalWrite(2, LOW);
delay(20);
digitalWrite(3, HIGH);
delay(100);
digitalWrite(3, LOW);
delay(30);
digitalWrite(4, HIGH);
delay(100);
digitalWrite(4, LOW);
delay(40);
digitalWrite(5, HIGH);
delay(100);
digitalWrite(5, LOW);
delay(50);
digitalWrite(6, HIGH);
delay(100);
digitalWrite(6, LOW);
delay(60);
digitalWrite(7, HIGH);
delay(100);
digitalWrite(7, LOW);
delay(70);
digitalWrite(8, HIGH);
delay(100);
digitalWrite(8, LOW);
delay(80);
digitalWrite(9, HIGH);
delay(100);
digitalWrite(9, LOW);
delay(80);
}