const byte BUTTON1 = 2;
const byte BUTTON2 = 4;
const byte LED_DOWN = 8;
const byte LED_UP = 12;

void setup()
{
  pinMode(BUTTON1, INPUT_PULLUP);
  pinMode(BUTTON2, INPUT_PULLUP);
  pinMode(LED_UP, OUTPUT);
  pinMode(LED_DOWN, OUTPUT);
}

void loop()
{
  static bool stateUP {false};

  if (digitalRead(BUTTON1) == LOW) {
    stateUP = true;
  } else if (digitalRead(BUTTON2) == LOW) {
    stateUP = false;
  }

  if (stateUP) {
    digitalWrite(LED_UP, HIGH);
    digitalWrite(LED_DOWN,LOW);
  } else {
    digitalWrite(LED_UP, LOW);
    digitalWrite(LED_DOWN,HIGH);
  }
}