void setup() {
  
  Serial.begin(57600);
}

void loop() {
  
  int num1 = 10;
  int num2 = 20;

  int maxNum = max(num1, num2);

  Serial.print("Number 1: ");
  Serial.println(num1);
  Serial.print("Number 2: ");
  Serial.println(num2);
  Serial.print("Maximum: ");
  Serial.println(maxNum);
  delay(5000);
}