// Бортюк Владимир 6 задание

#define per1 500
#define per2 700
#define per3 900

const int led_1 = 4;
const int led_2 = 5;
const int led_3 = 6;

int flag1 = 0;
int flag2 = 0;
int flag3 = 0;

uint32_t time1;
uint32_t time2;
uint32_t time3;


void setup() {
  pinMode(led_1, OUTPUT);
  pinMode(led_2, OUTPUT);
  pinMode(led_3, OUTPUT);

  digitalWrite(led_1, LOW);
  digitalWrite(led_2, LOW);
  digitalWrite(led_3, LOW);
}

void loop() {
  if(millis() - time1 == per1) {
    time1 = millis();

    if(flag1 == 0){
      digitalWrite(led_1, HIGH);
      flag1 = 1;
    }
    else if(flag1 == 1){
      digitalWrite(led_1, LOW);
      flag1 = 0;
    }
  }


  if(millis() - time2 == per2) {
    time2 = millis();

    if(flag2 == 0){
      digitalWrite(led_2, HIGH);
      flag2 = 1;
    }
    else if(flag2 == 1){
      digitalWrite(led_2, LOW);
      flag2 = 0;
    }
  }


  if(millis() - time3 == per3) {
    time3 = millis();

    if(flag3 == 0){
      digitalWrite(led_3, HIGH);
      flag3 = 1;
    }
    else if(flag3 == 1){
      digitalWrite(led_3, LOW);
      flag3 = 0;
    }
  }
}