void setup() {
 pinMode(12, OUTPUT);
 pinMode(11,OUTPUT) ;
 pinMode(10,OUTPUT);
 pinMode(9,OUTPUT);
Serial.begin(9600);
}

void loop() {
  digitalWrite(12, HIGH);
  delay(1000);
  Serial.println("soso");
  digitalWrite(12, LOW);
  delay(500);
  digitalWrite(11,HIGH);
  delay(1000);
  digitalWrite(11,LOW);
  delay(500);
  digitalWrite(10,HIGH);
  delay(1000);
  digitalWrite(10,LOW);
  delay(500);
  digitalWrite(9,HIGH);
  delay(1000);
  digitalWrite(9,LOW);
  delay(500);

 Serial.println("soso");
  // put your main code here, to run repeatedly:

}