int x=0;
int y=0;
int z=0;
int toplam=0;


void setup() {
  pinMode(2, INPUT);
  pinMode(3, INPUT);
  pinMode(4, INPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);

}

void loop() {
digitalWrite(9, LOW);
digitalWrite(10, LOW);
digitalWrite(11, LOW);
  toplam=0;
  x=digitalRead(2);
  y=digitalRead(3);  
  z=digitalRead(4);

  if(x==HIGH){ 
    digitalWrite(9, HIGH);
    toplam=toplam+1;
    }

  if(y==HIGH){ 
    digitalWrite(10, HIGH);
    toplam=toplam+2;
    }

  if(z==HIGH){ 
    digitalWrite(11, HIGH);
    toplam=toplam+4;
    }
    
 // delay(100);
}