void setup() {
  // put your setup code here, to run once:
  for (int i=2;i<=9;i++)
  pinMode(i, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(7, HIGH);
  delay(1000);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);
  delay(1000);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  delay(1000);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  delay(1000);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(8, HIGH);
  delay(1000);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(8, LOW);
  delay(1000);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(8, HIGH);
  delay(1000);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(8, LOW);
  delay(1000);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(8, HIGH);
  delay(1000);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);
  delay(1000);
  digitalWrite(2, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(8, HIGH);
  delay(1000);
  digitalWrite(2, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);
  delay(1000);
  digitalWrite(2, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(8, HIGH);
  delay(1000);
  digitalWrite(2, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);
  delay(1000);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  delay(1000);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  delay(1000);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(8, HIGH);
  delay(1000);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);
  delay(1000);
  digitalWrite(2, HIGH);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(8, HIGH);
  delay(1000);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);
  delay(1000);
}