const int relaypin1=13;
const int relaypin2=13;
const int relaypin3=13;

void setup(){
  pinMode(relaypin1,OUTPUT);
    pinMode(relaypin2,OUTPUT);
      pinMode(relaypin3,OUTPUT);


}

void loop(){
  digitalWrite(relaypin1,LOW);
  delay(800);

  digitalWrite(relaypin1,HIGH);
  delay(800);

digitalWrite(relaypin2,LOW);
delay(600);


digitalWrite(relaypin2,HIGH);
delay(600);


digitalWrite(relaypin3,LOW);
delay(400);


digitalWrite(relaypin3,LOW);
delay(400);
}