int kogus=5;
int sees=0;
void setup() {
  pinMode(13, OUTPUT);
  pinMode(2, INPUT_PULLUP);
}

void vilgu(){
      digitalWrite(13, HIGH);
      delay(200);  
      digitalWrite(13, LOW);
      delay(300);    
}

void vilgutused(){
   for(int loendur=0; loendur<kogus; loendur++){
     vilgu(); 
   }   
   delay(2000); 
}

void loop() {
  vilgutused();
  if(digitalRead(2)==HIGH){
     sees=0;
  }
  if(digitalRead(2)==LOW){
      if(sees==0){kogus=kogus+1;}  
      sees=1;
      delay(100);
  }
}