// C++ code
//
void setup()
{
  pinMode(D8, OUTPUT);
  pinMode(D7, OUTPUT);
  pinMode(D4, OUTPUT);
}

void loop()
{
  digitalWrite(D8, LOW);
  digitalWrite(D7, LOW);
  digitalWrite(D4, HIGH);
  delay(10000); // Wait for 10000 millisecond(s)
  digitalWrite(D8, LOW);
  digitalWrite(D7, HIGH);
  digitalWrite(D4, LOW);
  delay(2000); // Wait for 2000 millisecond(s)
  digitalWrite(D8, HIGH);
  digitalWrite(D7, LOW);
  digitalWrite(D4, LOW);
  delay(10000); // Wait for 10000 millisecond(s)
}