int diodaC = 2;
int diodaZZ = 3;
int diodaZ = 4;

void setup() {
  // put your setup code here, to run once:
  pinMode (diodaC, OUTPUT);
  pinMode (diodaZZ, OUTPUT); 
  pinMode (diodaZ, OUTPUT); 

  digitalWrite (diodaC, LOW);
  digitalWrite (diodaZZ, LOW);
  digitalWrite (diodaZ, LOW);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite (diodaC, HIGH);
  digitalWrite (diodaZZ, LOW);
  digitalWrite (diodaZ, LOW);
  delay (5000);
  digitalWrite (diodaC, HIGH);
  digitalWrite (diodaZZ, HIGH);
  digitalWrite (diodaZ, LOW);
  delay (2000);
  digitalWrite (diodaC, LOW);
  digitalWrite (diodaZZ, LOW);
  digitalWrite (diodaZ, HIGH);
  delay (5000);
  digitalWrite (diodaC, LOW);
  digitalWrite (diodaZZ, HIGH);
  digitalWrite (diodaZ, LOW);
  delay (2000);


}