#define a 23
#define b 22
#define c 21
#define d 19
#define e 18
#define f 5
#define g 4
#define pb 2

void setup(){
  pinMode(a, OUTPUT);
  pinMode(b, OUTPUT);
  pinMode(c, OUTPUT);
  pinMode(d, OUTPUT);
  pinMode(e, OUTPUT);
  pinMode(f, OUTPUT);
  pinMode(g, OUTPUT);
  pinMode(pb, INPUT);
  Serial.begin(9600);
}

int data=0, count=0;
void loop(){
  data = digitalRead(pb);

  if(data == 0){
    while(data == 0){
      data = digitalRead(pb);
      delay(10);
    }
    count = count + 1;
    Serial.println("count" + String(count));
  }

  if(count == 0){
    //Zeroi
    digitalWrite(a, 0);
    digitalWrite(b, 0);
    digitalWrite(c, 0);
    digitalWrite(d, 0);
    digitalWrite(e, 0);
    digitalWrite(f, 0);
    digitalWrite(g, 1);
  }

  else if(count == 1){
    //ONE
    digitalWrite(a, 1);
    digitalWrite(b, 0);
    digitalWrite(c, 0);
    digitalWrite(d, 1);
    digitalWrite(e, 1);
    digitalWrite(f, 1);
    digitalWrite(g, 1);
  }

  else if(count == 2){
    //TWO
    digitalWrite(a, 0);
    digitalWrite(b, 0);
    digitalWrite(c, 1);
    digitalWrite(d, 0);
    digitalWrite(e, 0);
    digitalWrite(f, 1);
    digitalWrite(g, 0);
  }

  else if(count == 3){
    //THREE
    digitalWrite(a, 0);
    digitalWrite(b, 0);
    digitalWrite(c, 0);
    digitalWrite(d, 0);
    digitalWrite(e, 1);
    digitalWrite(f, 1);
    digitalWrite(g, 0);
  }

  else if(count == 4){
    //FOUR
    digitalWrite(a, 1);
    digitalWrite(b, 0);
    digitalWrite(c, 0);
    digitalWrite(d, 1);
    digitalWrite(e, 1);
    digitalWrite(f, 0);
    digitalWrite(g, 0);
  }

  else if(count == 5){
    //FIVE
    digitalWrite(a, 0);
    digitalWrite(b, 1);
    digitalWrite(c, 0);
    digitalWrite(d, 0);
    digitalWrite(e, 1);
    digitalWrite(f, 0);
    digitalWrite(g, 0);
  }

  else if(count == 6){
    //SIX
    digitalWrite(a, 0);
    digitalWrite(b, 1);
    digitalWrite(c, 0);
    digitalWrite(d, 0);
    digitalWrite(e, 0);
    digitalWrite(f, 0);
    digitalWrite(g, 0);
  }

  else if(count == 7){
    //SEVEN
    digitalWrite(a, 0);
    digitalWrite(b, 0);
    digitalWrite(c, 0);
    digitalWrite(d, 1);
    digitalWrite(e, 1);
    digitalWrite(f, 1);
    digitalWrite(g, 1);
  }

  else if(count == 8){
    //EIGHT
    digitalWrite(a, 0);
    digitalWrite(b, 0);
    digitalWrite(c, 0);
    digitalWrite(d, 0);
    digitalWrite(e, 0);
    digitalWrite(f, 0);
    digitalWrite(g, 0);
  }

  else if(count == 9){
    //NINE
    digitalWrite(a, 0);
    digitalWrite(b, 0);
    digitalWrite(c, 0);
    digitalWrite(d, 0);
    digitalWrite(e, 1);
    digitalWrite(f, 0);
    digitalWrite(g, 0);
  }

  else if(count == 10){
    count=0;
  }
  
}