insert into book (isbn, title, author, year, price) values 
	('9791196440388', '타인의 방', '최인호', '2019', 12000);
insert into book (isbn, title, author, year, price) values 
	('9791196440366', '나목', '박완서', '2019', 13000);
insert into book (isbn, title, author, year, price) values 
	('9791196440346', '삼포 가는 길', '황석영', '2018', 15000);
insert into book (isbn, title, author, year, price) values 
	('9791196440545', '우상의 눈물', '전상국', '2020', 15000);	
insert into book (isbn, title, author, year, price) values 
	('9791196678899', '토지', '박경리', '2021', 13000);	