int conta = 0;
int i = 0;
int j = 0;
int k = 0;
void setup()
{
  Serial.begin(9600);
  pinMode (2, INPUT);
  pinMode (13, OUTPUT);
  digitalWrite(2, LOW);
}

void loop()
{
    i++;
  Serial.println(i);
  delay(100);

  if (i == 10) {
    j++;
    i = 0;
    Serial.print("Tiempo: ");
    Serial.println(j);
  }

  if (digitalRead(2) == LOW)
  {
    if (digitalRead(2) == HIGH){
           conta++;
    Serial.print("conta: ");
    Serial.println(conta);
     j = 0;
    i = 0;
     digitalWrite(2, LOW);
     }
  }

  if (j == 11) {
    Serial.println("TIME OVER");
    i = 0;
    j = 0;
    for (int k = 0; k < conta; k++) {
      Serial.print("LED");
      Serial.println(k + 1);
      digitalWrite(13, HIGH);
      delay(1000);
      digitalWrite(13, LOW);
      delay(1000);
    }
    conta = 0;
  }
}