# 「POJ-4052」Hrinity-AC自动机

In the Christian religion, the Trinity is the union of the Father, the Son, and the
Holy Spirit in one God. Recently in a far-far-away country, a new word “Hrinity” was
created and became very popular. “Hrinity” means “The son is the father, and the
father is the son.” But the word “Hrinity” has nothing to do with God or any religion.
It’s about a writer and his son.
When the son was in high school, he failed all exams of all courses. As a none
famous writer, the son’s worrying father carried out a bold plan: he wrote a long novel
and declared that it’s his 16 year old son’s work. An idiot kid can write a long novel?
That made a press interested and the press published the novel. Since then, the son got
famous and rich, and his father has been keep writing novels and articles on his son’s
name.

POJ-4052

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