void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(27,OUTPUT);
  pinMode (12,OUTPUT );
  pinMode(4,OUTPUT );
}

void loop(){
  digitalWrite(27, HIGH);
  // put your main code here, to run repeatedly:
  delay(10000);
  digitalWrite (27,LOW );
  delay(1000);
    digitalWrite(12, HIGH);
      delay(10000);
        digitalWrite (12,LOW );
              delay(1000);
                  digitalWrite(4, HIGH);
                        delay(10000);
                                digitalWrite (4,LOW );
                                      delay(1000);
                                      
  // this speeds up the simulation
}