void setup() {
  DDRD = B11111111;
  DDRB = B00000011;
   for(int led = 0; led<10; led++){
    pinMode(led, OUTPUT);
   }
   for(int button = 10; button<13; button++){
    pinMode(button, INPUT_PULLUP);
   } 
}


void loop(){
  if(digitalRead(10)==LOW){
    for(int led = 0; led<10; led++){
    digitalWrite(led, HIGH);
    delay(200);
   }
    for(int led = 9; led>=0; led--){
    digitalWrite(led, LOW);
    delay(200);
  } 
   for(int led = 0; led<10; led++){
    digitalWrite(led, HIGH);
    delay(200);
    digitalWrite(led, LOW);
    delay(200);
   }
    for(int led = 9; led>=0; led--){
    digitalWrite(led, HIGH);
    delay(200);
    digitalWrite(led, LOW);
    delay(200);
   }
   turnOff();
 }delay(500);
  if(digitalRead(11)==LOW){
    int i, a ,b ,c;
    for(i = 0; i<=7; i++){
      a = i%2;
      b = i/2%2;
      c = i/4%2;
      digitalWrite(0,a);
      digitalWrite(1,b);
      digitalWrite(2,c);
      binaryLedEquivalent(i);
      turnOff();
      delay(200);
    }
 }delay(500);  
}

void binaryLedEquivalent(int i){
  if(i== 1){
    PORTD = B00001000;
  }
  if(i == 2){
    PORTD = B00011000;
  }
  if(i == 3){
    PORTD = B00111000;
  }
  if(i ==4){
    PORTD = B01111000;
  }
  if(i == 5){
    PORTD = B11111000;
  }
  if(i == 6){
    PORTD = B11111000;
    PORTB = B00000001;
  }
  if(i == 7){
    PORTD = B11111000;
    PORTB = B00000011;
  }
}

void turnOff(){
  for(int led = 0;led<10; led++){
    digitalWrite(led, LOW);
  }
}