#define r1 1
#define r2 2
#define r3 3
#define r4 4

#define sw1 6

void setup() {
  pinMode(r1, OUTPUT);
  pinMode(r2, OUTPUT);
  pinMode(r3, OUTPUT);
  pinMode(r4, OUTPUT);

  pinMode(sw1, INPUT_PULLUP);
}

void loop() {
led_spikes();
}

void led_spikes() {
  digitalWrite(r2, HIGH);
  digitalWrite(r3, LOW);
  digitalWrite(r4, LOW);
  delay(750);
  digitalWrite(r2, HIGH);
  digitalWrite(r3, HIGH);
  digitalWrite(r4, LOW);
  delay(500);
  digitalWrite(r2, LOW);
  digitalWrite(r3, LOW);
  digitalWrite(r4, LOW);
  delay(700);
  digitalWrite(r2, HIGH);
  digitalWrite(r3, LOW);
  digitalWrite(r4, LOW);
  delay(350);
  digitalWrite(r2, HIGH);
  digitalWrite(r3, HIGH);
  digitalWrite(r4, LOW);
  delay(500);
  digitalWrite(r2, HIGH);
  digitalWrite(r3, HIGH);
  digitalWrite(r4, HIGH);
  delay(750);
  digitalWrite(r2, HIGH);
  digitalWrite(r3, HIGH);
  digitalWrite(r4, LOW);
  delay(500);
  
    digitalWrite(r2, HIGH);
  digitalWrite(r3, LOW);
  digitalWrite(r4, LOW);
  delay(350);
  digitalWrite(r2, HIGH);
  digitalWrite(r3, HIGH);
  digitalWrite(r4, LOW);
  delay(500);
  digitalWrite(r2, LOW);
  digitalWrite(r3, LOW);
  digitalWrite(r4, LOW);
  delay(750);
  digitalWrite(r2, HIGH);
  digitalWrite(r3, LOW);
  digitalWrite(r4, LOW);
  delay(250);
    digitalWrite(r2, HIGH);
  digitalWrite(r3, HIGH);
  digitalWrite(r4, LOW);
  delay(500);
      digitalWrite(r2, HIGH);
  digitalWrite(r3, HIGH);
  digitalWrite(r4, HIGH);
  delay(650);
  digitalWrite(r2, HIGH);
  digitalWrite(r3, HIGH);
  digitalWrite(r4, LOW);
  delay(350);
  digitalWrite(r2, HIGH);
  digitalWrite(r3, HIGH);
  digitalWrite(r4, LOW);
  delay(500);

}