void setup() {
  // put your setup code here, to run once:
pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);

}

void loop() {
// put your main code here, to run repeatedly:
//  digitalWrite(7, HIGH);
//  delay(20000);
//  digitalWrite(7, LOW);

//  digitalWrite(8, HIGH);
//  delay(100);
//  digitalWrite(8, LOW);
//  delay(100);
//  digitalWrite(9, HIGH);
//  delay(100);
//  digitalWrite(9, LOW);
//  delay(100);

//  for(int i = 6; i < 9; i++) {
//    digitalWrite(i, HIGH);
//  delay(20000);
//  digitalWrite(i, LOW);
//
//  }
//}