int buttonPin1 = 3;
int buttonPin2 = 4;

int ledPin1 = 10;
int ledPin2 = 9;
int ledPin3 = 8;
int ledPin4 = 7;

int buttonState1 = 0;
int buttonState2 = 0;
int x = 0;

void setup() {
  pinMode(ledPin1, OUTPUT);
  pinMode(ledPin2, OUTPUT);
  pinMode(ledPin3, OUTPUT);
  pinMode(ledPin4, OUTPUT);
  
  pinMode(buttonPin1, INPUT);
  pinMode(buttonPin2, INPUT);
}

void loop() {
  buttonState1 = digitalRead(buttonPin1);
  buttonState2 = digitalRead(buttonPin2);
  
  if (buttonState1 == HIGH) {
    x = 1;
  } 
  else if (buttonState2 == HIGH) {
    x = 0; // Setel nilai x ke 0 untuk mematikan LED
  }

  if (x == 1) {
    
    digitalWrite(ledPin1, HIGH);
    digitalWrite(ledPin3, HIGH);
    digitalWrite(ledPin2, LOW);
    digitalWrite(ledPin4, LOW);
    
    delay(1000);

    digitalWrite(ledPin1, LOW);
    digitalWrite(ledPin3, LOW);
    digitalWrite(ledPin2, HIGH);
    digitalWrite(ledPin4, HIGH);

    delay(1000);
   
  } else if (x == 0) {
    digitalWrite(ledPin1, LOW);
    digitalWrite(ledPin2, LOW);
    digitalWrite(ledPin3, LOW);
    digitalWrite(ledPin4, LOW);
  }
}