// Nama = Hartanto Dwi Cahyadi
// NIM  = 2023310026P

int timer = 700;
int pins[] = { 2, 3, 4, 5, 6, 7 };
int num_pins = 6;

void setup() {
  // put your setup code here, to run once:
  int i;
  for (i = 0; i < num_pins; i++)
  pinMode(pins[i], OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  int i;
  for (i = 0; i < num_pins; i++) {
  digitalWrite(pins[i], HIGH);
  delay(timer);
  digitalWrite(pins[i], LOW);
  }
}