void setup() {
  attachInterrupt(digitalPinToInterrupt(20),interrupt1,HIGH);
  attachInterrupt(digitalPinToInterrupt(21),interrupt2,HIGH);
}

void loop() {
  int a=8000;
  int b=2000;
  int c=3000;
  digitalWrite(6, HIGH);
  digitalWrite(0, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(10,HIGH);
  digitalWrite(8,HIGH);
  delay(b);
  digitalWrite(15,HIGH);
  delay(c);
  digitalWrite(1, HIGH);
  digitalWrite(15,LOW);
  delay(b);
  digitalWrite(0, LOW);
  digitalWrite(1, LOW);
  digitalWrite(2, HIGH);
  delay(a);
  digitalWrite(2, LOW);
  digitalWrite(1, HIGH);
  delay(b);
  digitalWrite(1, LOW);
  digitalWrite(0, HIGH);
  delay(b);
  digitalWrite(14, HIGH);
  delay(c);
  digitalWrite(4, HIGH);
  digitalWrite(14,LOW);
  delay(b);
  digitalWrite(3,LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, HIGH);
  delay(a);
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
  delay(b);
  digitalWrite(4, LOW);
  digitalWrite(3, HIGH);
}
void interrupt1(){
  int a=8000;
  int b=2000;
  int c=3000;
  digitalWrite(14,LOW);
  digitalWrite(15,LOW);
  if (digitalRead(0)==LOW){
    delay(c);
    digitalWrite(1, HIGH);
    digitalWrite(2, LOW);
    delay(b);
    digitalWrite(4, HIGH);
    digitalWrite(1, LOW);
    digitalWrite(0, HIGH);
  }
  delay(b);
  digitalWrite(4, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7,HIGH);
  delay(a);
  digitalWrite(6, HIGH);
  digitalWrite(7, LOW);
}
void interrupt2(){
  int a=8000;
  int b=2000;
  int c=3000;
  
}