#define l1 2
#define l2 3
#define l3 4
#define l4 5
#define l5 6

#define l6 7
#define l7 8
#define l8 9
#define l9 10
#define l10 11

#define l11 12
#define l12 13
#define l13 14
#define l14 17
#define l15 15

void setup() {
  pinMode(l1, OUTPUT);
  pinMode(l2, OUTPUT);
  pinMode(l3, OUTPUT);
  pinMode(l4, OUTPUT);
  pinMode(l5, OUTPUT);
  pinMode(l6, OUTPUT);
  pinMode(l7, OUTPUT);
  pinMode(l8, OUTPUT);
  pinMode(l9, OUTPUT);
  pinMode(l10, OUTPUT);
  pinMode(l11, OUTPUT);
  pinMode(l12, OUTPUT);
  pinMode(l13, OUTPUT);
  pinMode(l14, OUTPUT);
  pinMode(l15, OUTPUT);
}

void loop() {
  //first pattern
  delay(1000);
  digitalWrite(l3, HIGH);
  digitalWrite(l7, HIGH);
  digitalWrite(l9, HIGH);
  digitalWrite(l11, HIGH);
  digitalWrite(l12, HIGH);
  digitalWrite(l13, HIGH);
  digitalWrite(l14, HIGH);
  digitalWrite(l15, HIGH);
  delay(1000);
  digitalWrite(l3, LOW);
  digitalWrite(l7, LOW);
  digitalWrite(l9, LOW);
  digitalWrite(l11, LOW);
  digitalWrite(l12, LOW);
  digitalWrite(l13, LOW);
  digitalWrite(l14, LOW);
  digitalWrite(l15, LOW);
  delay(1000);

  //second pattern
  digitalWrite(l7, HIGH);
  digitalWrite(l8, HIGH);
  digitalWrite(l9, HIGH);
  digitalWrite(l11, HIGH);
  digitalWrite(l12, HIGH);
  digitalWrite(l13, HIGH);
  digitalWrite(l14, HIGH);
  digitalWrite(l15, HIGH);
  delay(1000);
  digitalWrite(l7, LOW);
  digitalWrite(l8, LOW);
  digitalWrite(l9, LOW);
  digitalWrite(l11, LOW);
  digitalWrite(l12, LOW);
  digitalWrite(l13, LOW);
  digitalWrite(l14, LOW);
  digitalWrite(l15, LOW);
  delay(1000);

  //third pattern
  digitalWrite(l1, HIGH);
  digitalWrite(l2, HIGH);
  digitalWrite(l3, HIGH);
  digitalWrite(l4, HIGH);
  digitalWrite(l5, HIGH);
  digitalWrite(l6, HIGH);
  digitalWrite(l10, HIGH);
  digitalWrite(l11, HIGH);
  digitalWrite(l12, HIGH);
  digitalWrite(l13, HIGH);
  digitalWrite(l14, HIGH);
  digitalWrite(l15, HIGH);
  delay(1000);
   digitalWrite(l1, LOW);
  digitalWrite(l2, LOW);
  digitalWrite(l3, LOW);
  digitalWrite(l4, LOW);
  digitalWrite(l5, LOW);
  digitalWrite(l6, LOW);
  digitalWrite(l10, LOW);
  digitalWrite(l11, LOW);
  digitalWrite(l12, LOW);
  digitalWrite(l13, LOW);
  digitalWrite(l14, LOW);
  digitalWrite(l15, LOW);
  delay(1000);

  //fourth pattern
  digitalWrite(l2, HIGH);
  digitalWrite(l3, HIGH);
  digitalWrite(l4, HIGH);
  digitalWrite(l6, HIGH);
  digitalWrite(l10, HIGH);
  digitalWrite(l12, HIGH);
  digitalWrite(l13, HIGH);
  digitalWrite(l14, HIGH);
  delay(1000);
  digitalWrite(l2, LOW);
  digitalWrite(l3, LOW);
  digitalWrite(l4, LOW);
  digitalWrite(l6, LOW);
  digitalWrite(l10, LOW);
  digitalWrite(l12, LOW);
  digitalWrite(l13, LOW);
  digitalWrite(l14, LOW);
  delay(1000);

  //fifth pattern
  digitalWrite(l3, HIGH);
  digitalWrite(l7, HIGH);
  digitalWrite(l8, HIGH);
  digitalWrite(l9, HIGH);
  digitalWrite(l13, HIGH);

  delay(1000);
  digitalWrite(l3, LOW);
  digitalWrite(l7, LOW);
  digitalWrite(l8, LOW);
  digitalWrite(l9, LOW);
  digitalWrite(l13, LOW);
  delay(1000);
}