int L1 = 2;
int L2 = 3;
int L3 = 4;
int L4 = 5;
int L5 = 8;
int L6 = 9;
int L7 = 10;
int L8 = 11;
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);
}
void loop(){
  digitalWrite(L1, HIGH);
  digitalWrite(L2, LOW);
  digitalWrite(L3, HIGH);
  digitalWrite(L4, LOW);
  digitalWrite(L5, HIGH);
  digitalWrite(L6, LOW);
  digitalWrite(L7, HIGH);
  digitalWrite(L8, LOW);
  delay(1000);
    digitalWrite(L1, LOW);
  digitalWrite(L2, HIGH);
  digitalWrite(L3, LOW);
  digitalWrite(L4, HIGH);
  digitalWrite(L5, LOW);
  digitalWrite(L6, HIGH);
  digitalWrite(L7, LOW);
  digitalWrite(L8, HIGH);
  delay(1000);
    digitalWrite(L1, HIGH);
  digitalWrite(L2, HIGH);
  digitalWrite(L3, LOW);
  digitalWrite(L4, LOW);
  digitalWrite(L5, HIGH);
  digitalWrite(L6, HIGH);
  digitalWrite(L7, LOW);
  digitalWrite(L8, LOW);
  delay(1000);
    digitalWrite(L1, LOW);
  digitalWrite(L2, LOW);
  digitalWrite(L3, HIGH);
  digitalWrite(L4, HIGH);
  digitalWrite(L5, LOW);
  digitalWrite(L6, LOW);
  digitalWrite(L7, HIGH);
  digitalWrite(L8, HIGH);
  delay(1000);
    digitalWrite(L1, HIGH);
  digitalWrite(L2, HIGH);
  digitalWrite(L3, HIGH);
  digitalWrite(L4, HIGH);
  digitalWrite(L5, LOW);
  digitalWrite(L6, LOW);
  digitalWrite(L7, LOW);
  digitalWrite(L8, LOW);
  delay(1000);
}