// 4¹ø ¹®Á¦
#include <stdio.h>

class BitData {
public:
	int data;
	BitData() {
		data = 12345;  // 12345¸¦ ¹®Á¦ÀÇ Key·Î ¹Ù²ã¼­ Ç® °Í
	}
	BitData(BitData *from) {
		data = from->data;
	}
	BitData *op1() {
		data = data | 2;
		return this;
	}
	BitData *op2() {
		BitData *tmp = new BitData();
		tmp->data = tmp->data | 4;
		return tmp;
	}
	BitData *op3() {
		data = data | 8;
		return this;
	}	
	BitData *op4() {
		BitData *tmp = new BitData(this);
		data = tmp->data & 15;
		return this;
	}
	void print() {
		printf("%d\n",data);
	}
};

void main()
{
	BitData *x = new BitData();

	x->data = x->data & 1;
	x->op1();
	x->op2();
	x = x->op3()->op4();

	x->print();
}