byte green = 4;
byte blue = 3;
byte red = 2;
int wait = 4000;

void setup() {
    pinMode(green,OUTPUT);
    pinMode(blue,OUTPUT);
    pinMode(red,OUTPUT);
}

void secu1(int r) {
    while (r>0) {
        digitalWrite(green,1);
        delay(wait);
        digitalWrite(green,0);
        digitalWrite(red,1);
        delay(wait);
        digitalWrite(red,0);
        digitalWrite(blue,1);
        delay(wait);
        digitalWrite(blue,0);
        --r;
    }
}

void secu2(int r) {
    while (r>0){
        digitalWrite(blue,0);
        digitalWrite(red,1);
        delay(wait);
        digitalWrite(green,0);
        digitalWrite(blue,1);
        delay(wait);
        digitalWrite(red,0);
        digitalWrite(green,1);
        delay(wait);
        --r;
    }
}

void loop() {
    //secu1(4);
    //secu2(4);
    digitalWrite(green,0);
    digitalWrite(red,1);
    delay(wait);
    digitalWrite(blue,1);
    digitalWrite(red,0);
    delay(wait);
    digitalWrite(green,1);
    digitalWrite(blue,0);
    delay(wait);
}