#define led1 2
#define led2 3
#define led3 4
#define led4 5
#define led5 6
#define led6 7
#define led7 8
#define led8 9
int T1 = 70;




void setup() {
  for (int i=2; i<=17;i++)
  pinMode(i, OUTPUT);


}

void loop() 
{
  for (int i=2; i<17;i++)
  {
  digitalWrite(i, HIGH);
  delay(T1);
  digitalWrite(i, LOW);
  delay(T1);
  if(i==9)
  {
  digitalWrite(2, HIGH);
  delay(T1);
  digitalWrite(2, LOW);
  delay(T1);
  }
  }
}