const int buttonPin = 7;
const int ledPin =  13;


int i=0;
int buttonState = 0;

void setup() {

  pinMode(ledPin, OUTPUT);

  pinMode(buttonPin, INPUT);
}

void loop() {

  buttonState = digitalRead(buttonPin);


  if (buttonState==HIGH) {
    while (i<1000);
    {

    digitalWrite(ledPin,HIGH);
    delay(1000);
    digitalWrite(ledPin,LOW);
    delay(1000);
    (i++);
  }
  }

}