int LED=13;
int BUTTON_X=2;
int BUTTON_Y=4;

void setup() {
pinMode(LED, OUTPUT);
pinMode(BUTTON_X, INPUT);
pinMode(BUTTON_Y, INPUT);
}

void loop() {
if(digitalRead(BUTTON_X)==HIGH){
  digitalWrite(LED, HIGH);
  delay(2000);
  digitalWrite(LED, LOW);
  delay(2000);
}
  if (digitalRead (BUTTON_Y)==HIGH){
digitalWrite(LED, HIGH);
delay(500);
digitalWrite(LED, LOW);
delay(500);
  }
if(digitalRead(BUTTON_X)==BUTTON_Y){
  digitalWrite(LED, LOW);
}
}