void setup()
{

 pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(9, INPUT);
  
}

void loop()
{
  if(digitalRead(3)==HIGH)
  {
  digitalWrite(3, HIGH);
  }
  else
  {
  
  }

  if(digitalRead(4)==HIGH)
  {
  digitalWrite(4, HIGH);
  }
  else
  {
    digitalWrite(9, HIGH);
  }
  
}