void setup() {
  // put your setup code here, to run once:
pinMode(2, INPUT_PULLUP);
pinMode(3, INPUT_PULLUP);
pinMode(4, INPUT_PULLUP);
pinMode(5, INPUT_PULLUP);
pinMode(13, OUTPUT);
pinMode(12, OUTPUT);
pinMode(11, OUTPUT);
pinMode(10, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
if (digitalRead(2) == LOW){
   digitalWrite(10, HIGH);
   delay(2000);
   digitalRead(10, LOW);
   delay(3000);
}

else if (digitalRead(3) == LOW){
digitalWrite(11, HIGH);
delay(2000);
digitalWrite(11, LOW);
delay(3000);
}