code

int switchState = 0;

void setup() {
   pinMode(3, OUTPUT);
    pinMode(4, OUTPUT);
    pinMode(5, OUTPUT);
   pinMode(2, OUTPUT);
}

void loop() {
    switchState = digitalRead(2);

if (switchState == LOW) {
  digitalWrite(3, HIGH);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  
}

else {
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, HIGH);
  
  delay(250);
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
  delay(250);
  
  }

}