const int pinINPUT = 2;
const int pinLED0 = 3;
const int pinLED1 = 4;
const int pinLED2 = 5;
const int pinLED3 = 6;
const int pinLED4 = 7;
const int pinLED5 = 8;
const int pinLED6 = 9;
const int pinREL1 = 10;
const int pinREL2 = 11;
const int pinREL3 = 12;

bool inputState = false;
bool activeState = false;

void setup() {
  pinMode(pinINPUT, INPUT);
  pinMode(pinLED0, OUTPUT);
  pinMode(pinLED1, OUTPUT);
  pinMode(pinLED2, OUTPUT);
  pinMode(pinLED3, OUTPUT);
  pinMode(pinLED4, OUTPUT);
  pinMode(pinLED5, OUTPUT);
  pinMode(pinLED6, OUTPUT);
  pinMode(pinREL1, OUTPUT);
  pinMode(pinREL2, OUTPUT);
  pinMode(pinREL3, OUTPUT);
  //digitalWrite(pinINPUT, HIGH);
  digitalWrite(pinREL1, HIGH); // <---
  digitalWrite(pinREL2, HIGH); // <---
  digitalWrite(pinREL3, HIGH); // <---
}

void loop() {
  inputState = digitalRead(pinINPUT);
  if (inputState == HIGH) { // SWAP?
    digitalWrite(pinLED0, LOW);
    countDown();
  } else {
    digitalWrite(pinLED0, HIGH);
    turnOffLEDs();
    digitalWrite(pinREL1, HIGH);  // <---
  }
}

void countDown() {
  for (int i = 10; i >= 0; i--) {
    if (digitalRead(pinINPUT) == LOW) {
      turnOffLEDs();
      if (activeState == true) {
        digitalWrite(pinREL1, HIGH); // <---
        digitalWrite(pinREL3, LOW); // <---
        delay(300);
        digitalWrite(pinREL3, HIGH); // <---
        digitalWrite(pinLED6, LOW);
      }
      activeState = false;
      return;
    }
    if (i == 0) {
      digitalWrite(pinLED6, HIGH);
      activeState = true;
      digitalWrite(pinREL1, LOW); // <---
      digitalWrite(pinREL2, LOW); // <---
      delay(300);
      digitalWrite(pinREL2, HIGH); // <---
      return;
    }
    turnOnLED(i);
    delay(1000);
  }
}

void turnOnLED(int numLED) {
  switch (numLED) {
    case 10:
      digitalWrite(pinLED1, HIGH);
      break;
    case 8:
      digitalWrite(pinLED2, HIGH);
      break;
    case 6:
      digitalWrite(pinLED3, HIGH);
      break;
    case 4:
      digitalWrite(pinLED4, HIGH);
      break;
    case 2:
      digitalWrite(pinLED5, HIGH);
      break;
  }
}

void turnOffLEDs() {
  digitalWrite(pinLED1, LOW);
  digitalWrite(pinLED2, LOW);
  digitalWrite(pinLED3, LOW);
  digitalWrite(pinLED4, LOW);
  digitalWrite(pinLED5, LOW);
}