unsigned const int g = 13;
unsigned const int f= 12;
unsigned const int a = 11;
unsigned const int b = 10;
unsigned const int e = 9;
unsigned const int c = 8;
unsigned const int d = 7;
unsigned const int dp = 6;
#define on LOW
#define off HIGH



void setup() {
  Serial.begin(9600);
  Serial.println(" ");
  for (int i=13; i>5; i--){
    pinMode(i, OUTPUT);
  }
  patay();

}

void loop() {
  if(Serial.available()>0){
    String letters = Serial.readString();
    letters.trim();

    if(letters =="char"){
      letA();
      delay(1000);
      patay();
      letB();
      delay(1000);
      patay();
      letC();
      delay(1000);
      patay();
      letD();
      delay(1000);
      patay();
      letE();
      delay(1000);
      patay();
      letF();
      delay(1000);
      patay();
      letG();delay(1000);
      patay();
      letH();
      delay(1000);
      patay();
      letI();delay(1000);
      patay();
      letJ();
    }else if(letters =="num"){
      letone();
      delay(1000);
      patay();

      lettwo();
      delay(1000);
      patay();

      letthree();
      delay(1000);
      patay();

      letfour();
      delay(1000);
      patay();

      letfive();
      delay(1000);
      patay();

      letsix();
      delay(1000);
      patay();

      letseven();
      delay(1000);
      patay();

      leteight();
      delay(1000);
      patay();

      letnine();
      delay(1000);
      patay();

      letzero();
      delay(1000);
      patay();
    }else{
      patay();
    }
      
    
  }

}



void letA(){
    digitalWrite(a,on);
    digitalWrite(b,on);
    digitalWrite(d,on);
    digitalWrite(e,on);
    digitalWrite(f,on);
    digitalWrite(g,on);
}
void letB(){
  digitalWrite(f,on);
  digitalWrite(e,on);
  digitalWrite(g,on);
  digitalWrite(d,on);
  digitalWrite(c,on);
}
void letC(){
  digitalWrite(a,on);
  digitalWrite(f,on);
  digitalWrite(e,on);
  digitalWrite(c,on);
}

void letD(){
  digitalWrite(b,on);
  digitalWrite(d,on);
  digitalWrite(g,on);
  digitalWrite(e,on);
  digitalWrite(c,on);
}

void letE(){
  digitalWrite(a,on);
  digitalWrite(e,on);
  digitalWrite(f,on);
  digitalWrite(g,on);
  digitalWrite(c,on);
}

void letF(){
    digitalWrite(a,on);
    digitalWrite(f,on);
    digitalWrite(e,on);
    digitalWrite(g,on);
}

void letG(){
  digitalWrite(a,on);
  digitalWrite(f,on);
  digitalWrite(e,on);
  digitalWrite(c,on);
  digitalWrite(d,on);
  digitalWrite(g,on);
}

void letH(){
    digitalWrite(f,on);
    digitalWrite(e,on);
    digitalWrite(d,on);
    digitalWrite(g,on);
}

void letI(){
  digitalWrite(f,on);
  digitalWrite(e,on);
}
  
void letone(){
  digitalWrite(b,on);
  digitalWrite(d,on);
}
void lettwo(){
  digitalWrite(a,on);
  digitalWrite(b,on);
  digitalWrite(g,on);
  digitalWrite(e,on);
  digitalWrite(c,on);
}
void letthree(){
  digitalWrite(a,on);
  digitalWrite(b,on);
  digitalWrite(d,on);
  digitalWrite(g,on);
  digitalWrite(c,on);
}
void letfour(){
  digitalWrite(f,on);
  digitalWrite(g,on);
  digitalWrite(b,on);
  digitalWrite(d,on);
}
void letfive(){
  digitalWrite(a,on);
  digitalWrite(f,on);
  digitalWrite(g,on);
  digitalWrite(d,on);
  digitalWrite(c,on);
}
void letsix(){
  digitalWrite(a,on);
  digitalWrite(f,on);
  digitalWrite(e,on);
  digitalWrite(c,on);
  digitalWrite(d,on);
  digitalWrite(g,on);
}
void letseven(){
  digitalWrite(a,on);
  digitalWrite(b,on);
  digitalWrite(g,on);
   digitalWrite(d,on);
}
void leteight(){
  digitalWrite(a,on);
  digitalWrite(b,on);
  digitalWrite(c,on);
  digitalWrite(d,on);
  digitalWrite(e,on);
  digitalWrite(f,on);
  digitalWrite(g,on);
}
void letnine(){
  digitalWrite(a,on);
  digitalWrite(f,on);
  digitalWrite(d,on);
  digitalWrite(b,on);
  digitalWrite(g,on);
}
void letzero(){
  digitalWrite(a,on);
  digitalWrite(b,on);
  digitalWrite(c,on);
  digitalWrite(d,on);
  digitalWrite(e,on);
  digitalWrite(f,on);
}




void patay(){
digitalWrite(g,off);
digitalWrite(f,off);
digitalWrite(a,off);
digitalWrite(b,off);
digitalWrite(e,off);
digitalWrite(c,off);
digitalWrite(d,off);
digitalWrite(dp,off);
}