/* Write a program to run pattern(s) on LEDs connect at pins 10,11,12,13.
  Pattern example :
  on, off, off, off
  off, on off, off
  off, off, on, off
  off, off, off, on
  on, on, off, off
  off, on, on, off
  off, off, on, on */
const int l1 = 10;
const int l2 = 11;
const int l3 = 12;
const int l4 = 13;
void setup() {
  // put your setup code here, to run once:
  pinMode(l1, OUTPUT);
  pinMode(l2, OUTPUT);
  pinMode(l3, OUTPUT);
  pinMode(l4, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(l1, HIGH);
  digitalWrite(l2, LOW);
  digitalWrite(l3, LOW);
  digitalWrite(l4, LOW);
  delay(500);
  digitalWrite(l1, LOW);
  digitalWrite(l2, HIGH);
  digitalWrite(l3, LOW);
  digitalWrite(l4, LOW);
  delay(500);
  digitalWrite(l1, LOW);
  digitalWrite(l2, LOW);
  digitalWrite(l3, HIGH);
  digitalWrite(l4, LOW);
  delay(500);
  digitalWrite(l1, LOW);
  digitalWrite(l2, LOW);
  digitalWrite(l3, LOW);
  digitalWrite(l4, HIGH);
  delay(500);
  digitalWrite(l1, HIGH);
  digitalWrite(l2, HIGH);
  digitalWrite(l3, LOW);
  digitalWrite(l4, LOW);
  delay(500);
  digitalWrite(l1, LOW);
  digitalWrite(l2, HIGH);
  digitalWrite(l3, HIGH);
  digitalWrite(l4, LOW);
  delay(500);
  digitalWrite(l1, LOW);
  digitalWrite(l2, LOW);
  digitalWrite(l3, HIGH);
  digitalWrite(l4, HIGH);
}