int ledPins[]={0,1,2,3,4};
void setup() {
  // put your setup code here, to run once:
  for(int i=0;i<=4;i++){
    pinMode(ledPins[i], OUTPUT);
  }
   
}

void loop() {
  // put your main code here, to run repeatedly:
  for(int i=0; i<32;i++){
    int a=i%2;
    int b=i/2 % 2;
    int c=i/4 % 2;
    int d=i/8 % 2;
    int e=i/16 % 2;

    digitalWrite(ledPins[0], a);
    digitalWrite(ledPins[1], b);
    digitalWrite(ledPins[2], c);
    digitalWrite(ledPins[3], d);
    digitalWrite(ledPins[4], e);
    delay(700);
  }
}