int numeri[5];

void setup() {
  // put your setup code here, to run once:
  Serial. begin (115200);
  numeri[0] = 7;
  numeri[1] = 4;
  numeri[2] = 12;
  numeri[3] = 3;
  numeri[4] = -5;
}

void loop() {
  // put your main code here, to run repeatedly:
  for (int i = 0; i < 5; i++)
  {
    Serial.print(i);
    Serial.print(" = ");
    Serial.println (numeri[i]);
    delay (500);
  }
}