void  void setup() {
  // put your setup code here, to run once:pi
pinMode(2, OUTPUT);pinMode(7,)OUTPUT);pinMode(8,OUTPUT);
}
void loop() {
// put your main code here, to run repeatedly:
digitalWrite(2, HIGH);
delay(100);
digitalWrite(2, LOW);
delay(100);
digitalWrite(7, HIGH);
delay(100);
digitalWrite(7,LOW);
delay(100);
digitalWrite(8, HIGH);
delay(100);
digitalWrite(8, HIGH);
delay(100);

}