void setup() {
  // put your setup code here, to run once:
  pinMode(8, INPUT);
  pinMode(9,OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(9, HIGH);
delay(200);
while (digitalRead(8) == HIGH){
  delay(1000);
}
digitalWrite(9, LOW);
digitalWrite(10, HIGH);
delay(200);
while(digitalRead(8) == HIGH){
  delay(1000);
}
digitalWrite(10, LOW);
delay(200);
digitalWrite(11, HIGH);
delay(200);
while(digitalRead(8) == HIGH){
  delay(1000);
}
digitalWrite(11, LOW);
}