void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("1234");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("1111");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("0000");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("1212");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("7777");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("1004");    
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("2000");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("4444");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("2222");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("6969");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("9999");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("3333");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("5555");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("6666");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("1122");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("1313");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("8888");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("4321");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("2001");
  delay(100); // this speeds up the simulation
  Serial.begin(115200);
  Serial.println("1010");
}