int led = 8;
int button = 7;
int numberofbuttonpress;

void setup () 
{
  pinMode (led, OUTPUT);
  pinMode (button, INPUT);
  Serial.begin (9600);
  int wait=200;
  int time=0;
}

void loop () 
{
    int wait=200;
    int time=0;

    if (digitalRead (button) == LOW && millis() - time > wait) // Millis for debounce
    {
      numberofbuttonpress ++;
      Serial.print (numberofbuttonpress); // Print the number on serial monitor for debugging purposes
    }
    
    if (numberofbuttonpress == 4)// After the 4th push of the button it returns to case 1
    numberofbuttonpress = 0;
    
    switch (numberofbuttonpress) // 4 cases are established
    {
    case 0:
       digitalWrite(led, LOW);
       break;
      
    case 1:
      digitalWrite(led,HIGH);
      break;
      
    case 2:
       digitalWrite(led, LOW);
       delay(100);
       digitalWrite(led,HIGH);     
       break;
      
    case 3:
       digitalWrite(led,HIGH);
       delay(10);
       digitalWrite(led, LOW);
       break;
      
    case 4:
        time = millis();   
  }

   delay (100);
}