const int mq_pin = 13;
const int ms_pin = 9;
const int my_pin = 6;
const int pq_pin = 5;
const int py_pin = 4;
const int kn_pin = 2;

unsigned long hv, ov_mq, ov_ms, ov_my;

void setup() {
  pinMode(mq_pin, OUTPUT);
  pinMode(ms_pin, OUTPUT);
  pinMode(my_pin, OUTPUT);
  pinMode(pq_pin, OUTPUT); 
  pinMode(py_pin, OUTPUT);
  pinMode(kn_pin, INPUT_PULLUP);
}

void loop() {
 hv = millis();
 if (3500 < hv && hv < 8500) {
  digitalWrite(mq_pin, HIGH);
 }
 else {
  digitalWrite(mq_pin, LOW);
 }

 if ((2500 < hv && hv < 3500) || (8500 < hv && hv < 9500)) {
  digitalWrite(ms_pin, HIGH);
 }
 else {
  digitalWrite(ms_pin, LOW);
 }
 if (
    (0 < hv && hv < 500) ||
    (1000 < hv && hv < 1500) ||
    (2000 < hv && hv < 2500) ||
    (8500 < hv && hv < 9500) 
  ) {
  digitalWrite(my_pin, HIGH);
  }
  else {
    digitalWrite(my_pin, LOW);
  }

  if (
    
  )
  else {
    
  }
}