int BUTTON = 14;
int LED1 = 4;
int LED2 = 2;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600); 
  pinMode(LED1, OUTPUT);
  pinMode(BUTTON, INPUT_PULLUP);
  pinMode(LED2, OUTPUT);
}

int counter = 0;
int prevButtonState = 1;
int currButtonState = 1;

void loop() {
  // put your main code here, to run repeatedly:
  currButtonState = digitalRead(BUTTON);
  if((currButtonState != prevButtonState) && (currButtonState == LOW)){
    counter += 1;
    counter = counter % 4;
    if(counter == 0){
      digitalWrite(LED1, LOW);
      digitalWrite(LED2, LOW);
    } else if (counter == 1) {
      digitalWrite(LED1, HIGH);
      digitalWrite(LED2, LOW);
    } else if (counter == 2) {
      digitalWrite(LED1, LOW);
      digitalWrite(LED2, HIGH);
    } else if (counter == 3) {
      digitalWrite(LED1, HIGH);
      digitalWrite(LED2, HIGH);
    }
  }
  prevButtonState = currButtonState;
}