It can't be put on the shelves until A signs it.
There are at least 8000 collections on the bookshelf.
All the words are free before they are put on the shelves.
Generally speaking, even the Great God has at least 200,000 words of free chapters.
It's no use signing it if it can't be put on the shelves.
After it is put on the shelves, it depends on the subscription. When subscribing, there are thousands of words.