void setup()
  {
    pinMode(4, OUTPUT);
    pinMode(3, INPUT);
    pinMode(9, INPUT);
    pinMode(2, OUTPUT);
  }

  void loop()
    {
      int s=digitalRead(3);
      int r=digitalRead(9);
      if((s==1)&&(r==1))
      {
         digitalWrite(4,1);
         digitalWrite(2,1);
      }
       if((s==1)&&(r==0))
      
      {
         digitalWrite(4,1);
         digitalWrite(2,0);
        
      }
      if((s==0)&&(r==1))
      {
        digitalWrite(4,0);
        digitalWrite(2,1);
      }   
     if((s==0)&&(r==0))
      {
         digitalWrite(4,0);
        digitalWrite(2,0);
      }
      
  
    }