int x=0;
void setup() {
pinMode(2, INPUT);
pinMode(3, INPUT);
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
pinMode(10, OUTPUT);
pinMode(11, OUTPUT);
pinMode(12, OUTPUT);
pinMode(13, OUTPUT);
Serial.begin(9600);
}

void loop() {
int Up = digitalRead(2);
int Down = digitalRead(3);
Serial.println("---------------------------");
Serial.println(Up);
Serial.println(Down);
Serial.println(x);
Serial.println("---------------------------");
if (Up==HIGH)
  {
    x=x+1;
    delay(500);
  }
if (Down==HIGH)
  {
    x=x-1;
    delay(500);
  }
delay(500);
if (x==0)
  {
    digitalWrite(13, LOW);
    digitalWrite(12, HIGH);
    digitalWrite(11, HIGH);
    digitalWrite(10, HIGH);
    digitalWrite(9, HIGH);
    digitalWrite(8, HIGH);
    digitalWrite(7, HIGH);
    digitalWrite(6, HIGH);
  }
if (x==1)
  {
    digitalWrite(13, LOW);
    digitalWrite(12, HIGH);
    digitalWrite(11, LOW);
    digitalWrite(10, LOW);
    digitalWrite(9, HIGH);
    digitalWrite(8, LOW);
    digitalWrite(7, LOW);
    digitalWrite(6, HIGH);
  }
}