void cero(){
  digitalWrite(2, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(18, LOW);
  digitalWrite(19, LOW);
  digitalWrite(21, LOW);
  digitalWrite(22, HIGH);
  digitalWrite(15, HIGH);
  }
void uno(){
  digitalWrite(2, HIGH);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(18, HIGH);
  digitalWrite(19, HIGH);
  digitalWrite(21, HIGH);
  digitalWrite(22, HIGH);
  digitalWrite(15, HIGH);
  }
void dos(){
  digitalWrite(2, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, HIGH);
  digitalWrite(18, LOW);
  digitalWrite(19, LOW);
  digitalWrite(21, HIGH);
  digitalWrite(22, LOW);
  digitalWrite(15, HIGH);
  }
void tres(){
  digitalWrite(2, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(18, LOW);
  digitalWrite(19, HIGH);
  digitalWrite(21, HIGH);
  digitalWrite(22, LOW);
  digitalWrite(15, HIGH);
  }
void cuatro(){
  digitalWrite(2, HIGH);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(18, HIGH);
  digitalWrite(19, HIGH);
  digitalWrite(21, LOW);
  digitalWrite(22, LOW);
  digitalWrite(15, HIGH);
  }
void cinco(){
  digitalWrite(2, LOW);
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
  digitalWrite(18, LOW);
  digitalWrite(19, HIGH);
  digitalWrite(21, LOW);
  digitalWrite(22, LOW);
  digitalWrite(15, HIGH);
  }
void seis(){
  digitalWrite(2, LOW);
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
  digitalWrite(18, LOW);
  digitalWrite(19, LOW);
  digitalWrite(21, LOW);
  digitalWrite(22, LOW);
  digitalWrite(15, HIGH);
  }
void siete(){
  digitalWrite(2, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(18, HIGH);
  digitalWrite(19, HIGH);
  digitalWrite(21, HIGH);
  digitalWrite(22, HIGH);
  digitalWrite(15, HIGH);
  }
void ocho(){
  digitalWrite(2, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(18, LOW);
  digitalWrite(19, LOW);
  digitalWrite(21, LOW);
  digitalWrite(22, LOW);
  digitalWrite(15, HIGH);
  }
void nueve(){
  digitalWrite(2, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(18, LOW);
  digitalWrite(19, HIGH);
  digitalWrite(21, LOW);
  digitalWrite(22, LOW);
  digitalWrite(15, HIGH);
  }

void setup() {
  pinMode(2, OUTPUT); 
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(18, OUTPUT);
  pinMode(19, OUTPUT);
  pinMode(21, OUTPUT);
  pinMode(22, OUTPUT);
  pinMode(15, OUTPUT);
}

void loop()
  {
   cero();
   delay(1000);
   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);
  }