class Book:
    def details(self,libraryname,bookname,author,pages):
        self.libraryname=libraryname
        self.bookname=bookname
        self.author=author
        self.pages=pages

        print(self.libraryname,self.bookname,self.author,self.pages)
    def __str__(self):
        return self.libraryname + self.bookname + self.author + str(self.pages)


bk=Book()
bk.details("shantabookstall","programming skills","abcd",100)
print(bk)
64cf4358472691d5a74d81950c8ea3c8bf1d08ae
class Book:
    <mask token>

    def __str__(self):
        return self.libraryname + self.bookname + self.author + str(self.pages)


<mask token>

class Book:

    def details(self, libraryname, bookname, author, pages):
        self.libraryname = libraryname
        self.bookname = bookname
        self.author = author
        self.pages = pages
        print(self.libraryname, self.bookname, self.author, self.pages)

    def __str__(self):
        return self.libraryname + self.bookname + self.author + str(self.pages)


<mask token>

class Book:

    def details(self, libraryname, bookname, author, pages):
        self.libraryname = libraryname
        self.bookname = bookname
        self.author = author
        self.pages = pages
        print(self.libraryname, self.bookname, self.author, self.pages)

    def __str__(self):
        return self.libraryname + self.bookname + self.author + str(self.pages)


<mask token>
bk.details('shantabookstall', 'programming skills', 'abcd', 100)
print(bk)

class Book:

    def details(self, libraryname, bookname, author, pages):
        self.libraryname = libraryname
        self.bookname = bookname
        self.author = author
        self.pages = pages
        print(self.libraryname, self.bookname, self.author, self.pages)

    def __str__(self):
        return self.libraryname + self.bookname + self.author + str(self.pages)


bk = Book()
bk.details('shantabookstall', 'programming skills', 'abcd', 100)
print(bk)

class Book:
    def details(self,libraryname,bookname,author,pages):
        self.libraryname=libraryname
        self.bookname=bookname
        self.author=author
        self.pages=pages

        print(self.libraryname,self.bookname,self.author,self.pages)
    def __str__(self):
        return self.libraryname + self.bookname + self.author + str(self.pages)


bk=Book()
bk.details("shantabookstall","programming skills","abcd",100)
print(bk)