int una = 2;
int unb = 4;
int unc = 5;
int und = 12;
int une = 16;
int unf = 17;
int ung = 18;
int unp = 21;
/*
int dea = 22;
int deb = 39;
int dec = 36;
int ded = 33;
int dee = 32;
int def = 27;
int deg = 26;
int dep = 15;
*/

void setup() {
  // put your setup code here, to run once:
  pinMode(una, OUTPUT);
  pinMode(unb, OUTPUT);
  pinMode(unc, OUTPUT);
  pinMode(und, OUTPUT);
  pinMode(une, OUTPUT);
  pinMode(unf, OUTPUT);
  pinMode(ung, OUTPUT);
  pinMode(unp, OUTPUT);
  /*
  pinMode(dea, OUTPUT);
  pinMode(deb, OUTPUT);
  pinMode(dec, OUTPUT);
  pinMode(ded, OUTPUT);
  pinMode(dee, OUTPUT);
  pinMode(def, OUTPUT);
  pinMode(deg, OUTPUT);
  pinMode(dep, OUTPUT);
  */

}

void loop() {
  for (int i = 0; i < 99; i++) {
    showValue(i);
    delay(250);
  }
}

void showValue(int num) {
  int priDig = num / 10;
  int segDig = num % 10;

  switch (priDig) {
    case 0: unidade_0(); break;
    case 1: unidade_1(); break;
    case 2: unidade_2(); break;
    case 3: unidade_3(); break;
    case 4: unidade_4(); break;
    case 5: unidade_5(); break;
    case 6: unidade_6(); break;
    case 7: unidade_7(); break;
    case 8: unidade_8(); break;
    case 9: unidade_9(); break;
  }
}

void apagarTudo() {
  digitalWrite(una, LOW);
  digitalWrite(unb, LOW);
  digitalWrite(unc, LOW);
  digitalWrite(und, LOW);
  digitalWrite(une, LOW);
  digitalWrite(unf, LOW);
  digitalWrite(ung, LOW);
}

void unidade_0() {
  apagarTudo();
  digitalWrite(una, HIGH);
  digitalWrite(unb, HIGH);
  digitalWrite(unc, HIGH);
  digitalWrite(und, HIGH);
  digitalWrite(une, HIGH);
  digitalWrite(unf, HIGH);
}

void unidade_1() {
  apagarTudo();
  digitalWrite(unb, HIGH);
  digitalWrite(unc, HIGH);
}

void unidade_2() {
  apagarTudo();
  digitalWrite(una, HIGH);
  digitalWrite(unb, HIGH);
  digitalWrite(ung, HIGH);
  digitalWrite(une, HIGH);
  digitalWrite(und, HIGH);
}

void unidade_3() {
  apagarTudo();
  digitalWrite(una, HIGH);
  digitalWrite(unb, HIGH);
  digitalWrite(ung, HIGH);
  digitalWrite(unc, HIGH);
  digitalWrite(und, HIGH);
}

void unidade_4() {
  apagarTudo();
  digitalWrite(unb, HIGH);
  digitalWrite(unc, HIGH);
  digitalWrite(ung, HIGH);
  digitalWrite(unf, HIGH);
}

void unidade_5() {
  apagarTudo();
  digitalWrite(una, HIGH);
  digitalWrite(unf, HIGH);
  digitalWrite(ung, HIGH);
  digitalWrite(unc, HIGH);
  digitalWrite(und, HIGH);
}

void unidade_6() {
  apagarTudo();
  digitalWrite(una, HIGH);
  digitalWrite(unf, HIGH);
  digitalWrite(ung, HIGH);
  digitalWrite(unc, HIGH);
  digitalWrite(und, HIGH);
  digitalWrite(une, HIGH);
}

void unidade_7() {
  apagarTudo();
  digitalWrite(una, HIGH);
  digitalWrite(unb, HIGH);
  digitalWrite(unc, HIGH);
}

void unidade_8() {
  apagarTudo();
  digitalWrite(una, HIGH);
  digitalWrite(unb, HIGH);
  digitalWrite(unc, HIGH);
  digitalWrite(und, HIGH);
  digitalWrite(une, HIGH);
  digitalWrite(unf, HIGH);
  digitalWrite(ung, HIGH);
}

void unidade_9() {
  apagarTudo();
  digitalWrite(una, HIGH);
  digitalWrite(unb, HIGH);
  digitalWrite(unc, HIGH);
  digitalWrite(unf, HIGH);
  digitalWrite(ung, HIGH);
  digitalWrite(und, HIGH);
}