A long time ago, there was a brave and clever descendant of the Dong family named A Ning. Once he was away on errands, walking and walking, feeling lonely and thinking that it would be nice to have company. Unexpectedly, this idea was known by a devil, and he was transformed into a person. So they went together.

As the two of them walked, the devil's foot hurt, so he came up with an idea to let A Ning carry him. The devil said, "Let's walk like this, and we won't be able to walk for another two days. Let's carry each other."

A Ning agreed and asked the devil, "Then who carries whom first?"

The devil said, "Well, whoever is younger should memorize the older one first."

Ah Ning knew that the devil wanted to play tricks on him, so he thought about it and said to the devil, "You mentioned it first, then you can report your age first."

The devil said, "I was born before there was anyone in the world, and I was the first person born in the world."

Hearing what the devil said, A Ning cursed in his heart: This devil, is this trying to trap me too? As soon as the devil finished speaking, A Ning burst into tears. The devil felt inexplicable and asked, "What are you crying about?" A Ning did not answer, and the more he cried, the more sad he became. The devil was anxious and said, "What are you crying about, say it!"

Ah Ning said slowly, "Hey, it's hard to tell. On the day you were born, my cub died. Now hearing you say that has aroused my sadness again."

The devil was tongue-tied and had to admit defeat and carry A Ning first.

As he walked, the more the devil thought about it, the more he regretted it, and the more he thought about it, the more annoyed he became. He thought to himself: I must not let anyone take advantage. So he said to A Ning, "We didn't make it clear at first. How far do we have to go? We have to have a contract to say."

A Ning thought for a while and said, "I didn't make it clear at first, so it's not easy to decide now. In this way, I will sing a song on your back, and when will I finish singing, I will change my back."

The devil thought, how long can a song last? So he agreed. A Ning began to sing "yo yo yi, yo yo yi." In fact, A Ning didn't sing any inspection, he kept saying "yo yo yi" over and over again.

After another day of walking, the song was not finished yet. The devil is anxious and asks, "When will you finish singing this song? It's always that yo yo yo!"

Ah Ning didn't answer, still singing his "yo yo yo."

In the evening, the devil couldn't walk anymore and begged, "When will your song be finished? Let's take a break."

A Ning looked up at the sky and agreed. He said, "This is what you want to rest in." My song is not sung. We have to count what we say.

Can a person make up such a long song? The devil was a little skeptical and asked, "What song are you singing?A Ning said, "This song is a song that opens the world, with 33,333 lines! I sang it for a day and only sang 1,111 lines!"

The devil was already exhausted. Hearing what A Ning said, he had to complain secretly and think to himself. I have to find another way to deal with him.

After resting for a while, the devil came up with a plan and said, "What are you most afraid of in the world?"

Ah Ning knew that the devil was playing his own game again. So he took his plan and said, "There are two things I am most afraid of, one is the person made of glutinous rice daddi, and the other is the stewed chicken."

The devil was secretly proud when he heard that, and thought, "These two things are not easy to handle! When I bring them to scare him away, I won't carry him tomorrow."

At night, the devil stole the glutinous rice and cooked chicken while the person was sleeping and put them next to A Ning. Then he woke up A Ning and said, "Look, what's next to you!"

Ah Ning woke up and saw Ciba and Stewed Chicken. He was overjoyed, but he pretended to be surprised and shouted, "Ah! Incredible, but scared me to death!" He grabbed Baba and Stewed Chicken and ate them.

The devil was stunned and asked puzzled, "Aren't you the most afraid of these two things? Why did you swallow them all?"

A Ning said, "I'm afraid of them, so I won't be afraid if I swallow them."

The devil suffers.

The next day, A Ning asked the devil to carry it again. The devil had no choice but to carry the person on his back and continue to walk. The person was still singing his yo yo yo...