const int leds[] = {13, 12, 11, 10, 9, 8, 7, 6};  
const int botones[] = {5, 4, 3, 2};              

void setup() {
    for (int i = 0; i < 8; i++) {
        pinMode(leds[i], OUTPUT);  
    }
    for (int i = 0; i < 4; i++) {
        pinMode(botones[i], INPUT_PULLUP);  
    }
}

void loop() {
    if (digitalRead(botones[0]) == LOW) {  
        for (int i = 0; i < 8; i++) {
            digitalWrite(leds[i], HIGH);
            delay(500);
        }
        delay(500);
        for (int i = 0; i < 8; i++) {
            digitalWrite(leds[i], LOW);
            delay(500);
        }
    }

    if (digitalRead(botones[1]) == LOW) {  
        for (int i = 0; i < 5; i++) {
            for (int j = 0; j < 8; j++) {
                digitalWrite(leds[j], HIGH);
            }
            delay(300);
            for (int j = 0; j < 8; j++) {
                digitalWrite(leds[j], LOW);
            }
            delay(300);
        }
    }

    if (digitalRead(botones[2]) == LOW) {  
        for (int i = 0; i < 8; i++) {
            digitalWrite(leds[i], HIGH);
            delay(400);
            digitalWrite(leds[i], LOW);
        }
        for (int i = 6; i >= 0; i--) {
            digitalWrite(leds[i], HIGH);
            delay(400);
            digitalWrite(leds[i], LOW);
        }
    }

    if (digitalRead(botones[3]) == LOW) {  
        for (int i = 0; i < 8; i++) {
            digitalWrite(leds[i], HIGH);
        }
        delay(1000);
        for (int i = 0; i < 8; i++) {
            digitalWrite(leds[i], LOW);
            delay(100);
        }
    }
}