int myNum;

void setup() {
  Serial.begin(9600);       // Start serial communication at 9600 baud
  pinMode(13, OUTPUT);      // Set pin 13 as output
  Serial.println("Enter a number to blink the LED:");
}

void loop() {
  if (Serial.available() > 0) {
    myNum = Serial.parseInt(); // Read the input as an integer
    if (myNum > 0) {           // Check if the input is valid
      Serial.print("Blinking LED ");
      Serial.print(myNum);
      Serial.println(" times.");
      for (int i = 0; i < myNum; i++) {
        digitalWrite(13, HIGH);  // Turn the LED on
        delay(1000);             // Wait for 1 second
        digitalWrite(13, LOW);   // Turn the LED off
        delay(1000);             // Wait for 1 second
      }
      Serial.println("Done blinking. Enter another number:");
    } else {
      Serial.println("Invalid input. Please enter a positive number:");
    }
    while (Serial.available() > 0) { // Clear the serial buffer
      Serial.read();
    }
  }
}