const int buttonPin1 = 4; 
const int buttonPin2 = 2; 
const int ledPin = 15;   

int buttonState1 = 0;     
int buttonState2 = 0;     
int lastButtonState1 = 0; 
int lastButtonState2 = 0; 
int ledState = LOW;     

void setup() {
  pinMode(ledPin, OUTPUT);      
  pinMode(buttonPin1, INPUT);    
  pinMode(buttonPin2, INPUT);    
}

void loop() {
  buttonState1 = digitalRead(buttonPin1);
  
  if (buttonState1 == HIGH && lastButtonState1 == LOW) {
    ledState = HIGH; 
    digitalWrite(ledPin, ledState);
  }

  buttonState2 = digitalRead(buttonPin2);
  
  if (buttonState2 == HIGH && lastButtonState2 == LOW) {
    ledState = LOW;
    digitalWrite(ledPin, ledState);
  }

  lastButtonState1 = buttonState1;
  lastButtonState2 = buttonState2;
}