void setup() {
  // put your setup code here, to run once:
pinMode(13, OUTPUT);
pinMode(12, OUTPUT);
pinMode(11, OUTPUT);
pinMode(10, OUTPUT);
pinMode(9, OUTPUT);
pinMode(8, OUTPUT);
pinMode(7, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
uno();
delay(1000);
dos();
delay(1000);
tres();
delay(1000);
cuatro();
delay(1000);
cinco();
delay(1000);
seis();
delay(1000);
siete();
delay(1000);
ocho();
delay(1000);
nueve();
delay(1000);
cero();
delay(1000);
}

void uno(){
digitalWrite(13, HIGH); // e
digitalWrite(12, HIGH); // d
digitalWrite(11, LOW); // c
digitalWrite(10, HIGH); // g
digitalWrite(9, HIGH); // f
digitalWrite(8, HIGH); // a
digitalWrite(7, LOW); // b
}

void dos(){
digitalWrite(13, LOW); // e
digitalWrite(12, LOW); // d
digitalWrite(11, HIGH); // c
digitalWrite(10, LOW); // g
digitalWrite(9, HIGH); // f
digitalWrite(8, LOW); // a
digitalWrite(7, LOW); // b
}

void tres(){
digitalWrite(13, HIGH); // e
digitalWrite(12, LOW); // d
digitalWrite(11, LOW); // c
digitalWrite(10, LOW); // g
digitalWrite(9, HIGH); // f
digitalWrite(8, LOW); // a
digitalWrite(7, LOW); // b
}

void cuatro(){
digitalWrite(13, HIGH); // e
digitalWrite(12, HIGH); // d
digitalWrite(11, LOW); // c
digitalWrite(10, LOW); // g
digitalWrite(9, LOW); // f
digitalWrite(8, HIGH); // a
digitalWrite(7, LOW); // b
}

void cinco(){
digitalWrite(13, HIGH); // e
digitalWrite(12, LOW); // d
digitalWrite(11, LOW); // c
digitalWrite(10, LOW); // g
digitalWrite(9, LOW); // f
digitalWrite(8, LOW); // a
digitalWrite(7, HIGH); // b
}

void seis(){
digitalWrite(13, LOW); // e
digitalWrite(12, LOW); // d
digitalWrite(11, LOW); // c
digitalWrite(10, LOW); // g
digitalWrite(9, LOW); // f
digitalWrite(8, LOW); // a
digitalWrite(7, HIGH); // b
}

void siete(){
digitalWrite(13, HIGH); // e
digitalWrite(12, HIGH); // d
digitalWrite(11, LOW); // c
digitalWrite(10, HIGH); // g
digitalWrite(9, HIGH); // f
digitalWrite(8, LOW); // a
digitalWrite(7, LOW); // b
}

void ocho(){
digitalWrite(13, LOW); // e
digitalWrite(12, LOW); // d
digitalWrite(11, LOW); // c
digitalWrite(10, LOW); // g
digitalWrite(9, LOW); // f
digitalWrite(8, LOW); // a
digitalWrite(7, LOW); // b
}

void nueve(){
digitalWrite(13, HIGH); // e
digitalWrite(12, HIGH); // d
digitalWrite(11, LOW); // c
digitalWrite(10, LOW); // g
digitalWrite(9, LOW); // f
digitalWrite(8, LOW); // a
digitalWrite(7, LOW); // b
}

void cero(){
digitalWrite(13, LOW); // e
digitalWrite(12, LOW); // d
digitalWrite(11, LOW); // c
digitalWrite(10, HIGH); // g
digitalWrite(9, LOW); // f
digitalWrite(8, LOW); // a
digitalWrite(7, LOW); // b
}