int IPin = 1;
int IIPin = 2;
int IIIPin = 3; 
int IVPin = 4;
int VPin = 5;
int VIPin = 6; 
int VIIPin = 7;
int VIIIPin = 8;
int IXPin = 9; 
int XPin = 10;
int XIPin = 11;

void setup() {
  pinMode(IPin,OUTPUT);
  pinMode(IIPin,OUTPUT);
  pinMode(IIIPin,OUTPUT);
  pinMode(IVPin,OUTPUT);
  pinMode(VPin,OUTPUT);
  pinMode(VIPin,OUTPUT);
  pinMode(VIIPin,OUTPUT);
  pinMode(VIIIPin,OUTPUT);
  pinMode(IXPin,OUTPUT);
  pinMode(XPin,OUTPUT);
  pinMode(XIPin,OUTPUT);
}

void loop() {
digitalWrite(IPin, HIGH);
digitalWrite(XIPin, HIGH);
digitalWrite(IIPin, LOW);
digitalWrite(XPin, LOW);
digitalWrite(IIIPin, LOW);
digitalWrite(IXPin, LOW);
digitalWrite(IVPin, LOW);
digitalWrite(VIIIPin, LOW);
digitalWrite(VPin, LOW);
digitalWrite(VIIPin, LOW);
digitalWrite(VIPin, LOW);

delay(2000);

digitalWrite(IPin, LOW);
digitalWrite(XIPin, LOW);
digitalWrite(IIPin, HIGH);
digitalWrite(XPin, HIGH);
digitalWrite(IIIPin, LOW);
digitalWrite(IXPin, LOW);
digitalWrite(IVPin, LOW);
digitalWrite(VIIIPin, LOW);
digitalWrite(VPin, LOW);
digitalWrite(VIIPin, LOW);
digitalWrite(VIPin, LOW);

delay(2000);

digitalWrite(IPin, LOW);
digitalWrite(XIPin, LOW);
digitalWrite(IIPin, LOW);
digitalWrite(XPin, LOW);
digitalWrite(IIIPin, HIGH);
digitalWrite(IXPin, HIGH);
digitalWrite(IVPin, LOW);
digitalWrite(VIIIPin, LOW);
digitalWrite(VPin, LOW);
digitalWrite(VIIPin, LOW);
digitalWrite(VIPin, LOW);

delay(2000);

digitalWrite(IPin, LOW);
digitalWrite(XIPin, LOW);
digitalWrite(IIPin, LOW);
digitalWrite(XPin, LOW);
digitalWrite(IIIPin, LOW);
digitalWrite(IXPin, LOW);
digitalWrite(IVPin, HIGH);
digitalWrite(VIIIPin, HIGH);
digitalWrite(VPin, LOW);
digitalWrite(VIIPin, LOW);
digitalWrite(VIPin, LOW);

delay(2000);

digitalWrite(IPin, LOW);
digitalWrite(XIPin, LOW);
digitalWrite(IIPin, LOW);
digitalWrite(XPin, LOW);
digitalWrite(IIIPin, LOW);
digitalWrite(IXPin, LOW);
digitalWrite(IVPin, LOW);
digitalWrite(VIIIPin, LOW);
digitalWrite(VPin, HIGH);
digitalWrite(VIIPin, HIGH);
digitalWrite(VIPin, LOW);

delay(2000);

digitalWrite(IPin, LOW);
digitalWrite(XIPin, LOW);
digitalWrite(IIPin, LOW);
digitalWrite(XPin, LOW);
digitalWrite(IIIPin, LOW);
digitalWrite(IXPin, LOW);
digitalWrite(IVPin, LOW);
digitalWrite(VIIIPin, LOW);
digitalWrite(VPin, LOW);
digitalWrite(VIIPin, LOW);
digitalWrite(VIPin, HIGH);

delay(2000);
}