void setup() {
  Serial.begin(115200);
  while (!Serial) {}
  for (int i = 4; i > 0; i--) {
    Serial.print(i);
  }
  Serial.println();
  for (int i = 1; i > 0, i <= 7; i++)
  {
    Serial.print(i);
  }
}

void loop() {
  // Empty loop to keep the program running

  while (1);
}