   numberOfChangedSteps++;
   Serial.println(numberOfChangedSteps);
 }
+
+void calculateResult()
+{
+
+}

char displayString[] = "x x x x x"; // = "x x x x x" as start value
int numberOfChangedSteps = 0;
boolean finished = false; //game is finished

void setup() 
{

    displayString[i*2] = randomValue;
  }
  
  isRedOn = random(0, 2);
  isGreenOn = random(0, 2);
  
  if(isRedOn) {
    digitalWrite(8,HIGH);
  } else {
    digitalWrite(8,LOW);
  }
  
  if(isGreenOn) {
    digitalWrite(7,HIGH);
  } else {    
    digitalWrite(7,LOW);
