int Verde = 4;
int Amarillo = 3;
int Rojo = 2;
int Verde2 = 8;
int Amarillo2 = 9;
int Rojo2 = 10;
int pop = 5000;
int pop2 = 10000;
int pop3 = 15000;

void setup() {pinMode(Verde, OUTPUT);
pinMode(Amarillo, OUTPUT);
pinMode(Rojo, OUTPUT);
pinMode(Verde2, OUTPUT);
pinMode(Amarillo2, OUTPUT);
pinMode(Rojo2, OUTPUT);
}

void loop() {digitalWrite(Verde, HIGH);digitalWrite(Amarillo, LOW); digitalWrite(Rojo, LOW);
digitalWrite(Rojo2, HIGH); 
delay(pop2);
digitalWrite(Amarillo, HIGH); digitalWrite(Verde, LOW); digitalWrite(Rojo, LOW);
delay(pop);
digitalWrite(Verde2, HIGH);digitalWrite(Rojo2, LOW); 
digitalWrite(Rojo, HIGH); digitalWrite(Amarillo, LOW); digitalWrite(Verde, LOW);
delay(pop2);
digitalWrite(Amarillo2, HIGH);digitalWrite(Verde2, LOW);
delay(pop);
digitalWrite(Amarillo2, LOW);
}