void setup() {
  pinMode(33, OUTPUT);
  pinMode(32, OUTPUT);
  pinMode(19, OUTPUT);
  pinMode(18, OUTPUT);




}

void loop() {
  digitalWrite(33, LOW);
  digitalWrite(32, LOW);
  digitalWrite(19, HIGH) ;
  digitalWrite(18, HIGH);
  delay(2000);
  digitalWrite(33, LOW);
  digitalWrite(32, HIGH);
  digitalWrite(19, LOW) ;
  digitalWrite(18, LOW);
  delay(1000);
  digitalWrite(33, HIGH) ;
  digitalWrite(32, LOW);
  digitalWrite(19, LOW) ;
  digitalWrite(18, LOW);
  delay(1000);
  digitalWrite(33, HIGH) ;
  digitalWrite(32, HIGH);
  digitalWrite(19, HIGH);
  digitalWrite(18, LOW);
  delay(1000);
  digitalWrite(33, HIGH);
  digitalWrite(32, HIGH);
  digitalWrite(19, LOW) ;
  digitalWrite(18, HIGH);
  delay(1000);
  
  
}