const char saluto [] = "ciao";
  const char domanda [] = "come stai?";

void setup() {
  // put your setup code here, to run once:
  
  Serial.begin(9600);
  
}

void loop() {
  // put your main code here, to run repeatedly:
  
  Serial.println (saluto);
  delay (500);
  
  
  
}