void setup() 
{
  // put your setup code here, to run once:
pinMode(2, OUTPUT);
pinMode(4, INPUT);
pinMode(9, INPUT_PULLUP);
pinMode(3, OUTPUT);
}

void loop() {
  if((digitalRead(4)==HIGH)&&(digitalRead(9)==LOW)){
  digitalWrite(2, HIGH);
  }
    else{
    digitalWrite(2, LOW);
    }

   if(digitalRead(9)==LOW) {
   digitalWrite(3, HIGH);
   }
   else{
    digitalWrite(3, LOW);
   }
  }