int foco1=1,foco2=5,foco3=3;
void setup() {
pinMode (foco1,OUTPUT);
pinMode (foco2,OUTPUT);
pinMode (foco3,OUTPUT);
}

void loop() {
digitalWrite(foco1,HIGH);
delay(1000);
digitalWrite(foco1,LOW);
delay(500);

digitalWrite(foco2,HIGH);
delay(1000);
digitalWrite(foco2,LOW);
delay(500);

digitalWrite(foco3,HIGH);
delay(1000);
digitalWrite(foco3,LOW);
delay(500);

digitalWrite(foco1,HIGH);
digitalWrite(foco2,HIGH);
delay(1000);

digitalWrite(foco1,LOW);
digitalWrite(foco2,LOW);
delay(1000);



digitalWrite(foco1,HIGH);
digitalWrite(foco3,HIGH);
delay(1000);


digitalWrite(foco1,LOW);
digitalWrite(foco3,LOW);
delay(1000);


digitalWrite(foco2,HIGH);
digitalWrite(foco3,HIGH);
delay(1000);


digitalWrite(foco2,LOW);
digitalWrite(foco3,LOW);
delay(1000);


digitalWrite(foco1,HIGH);
digitalWrite(foco2,HIGH);
digitalWrite(foco3,HIGH);
delay(1000);


digitalWrite(foco1,LOW);
digitalWrite(foco2,LOW);
digitalWrite(foco3,LOW);
delay(1000);
}