Shi Cheng was born in 1990. His parents are members of a surveying and mapping team of a certain unit of the People's Liberation Army. In Shi Cheng's impression, it seems that he has never seen his parents much.

In 1995, Shi Cheng's parents went with the army to a place called Heizhugou. Since then, Shi Chengcheng has never seen them again. That year, Shi Cheng was only five years old.

Although Shi Cheng has many relatives, since his parents left, the relatives who don't have much contact with him seem to have completely cut off relations with them. Later, the uncle who was farming in the countryside took Shi Cheng and his grandfather to their home. Although the uncle's family is very poor, no matter what, Shi Cheng has another nest. Besides, Shi Cheng's grandfather still has a little pension, and his life is not very hard.

Shi Cheng's grandfather and his uncle lived in the same village. Shi Cheng's grandmother died of stomach cancer early, and although his grandfather had eight children, they all had their own careers. The old man himself was alone at home, living on his pension. Every year the children come back for the Chinese New Year, also so that their children can get more New Year's money from the old man. Since Shi Cheng and his grandfather lived at his uncle's house, the two old men sat together when they had nothing to do, playing chess, chatting, and drinking wine.

Shi Cheng's uncle's family treats Shi Cheng very well, and it is not an exaggeration to say that he regards Shi Cheng as his own. Especially Shi Rongrong, the daughter of Uncle Shi Cheng, although she is only two years old, she sticks to Shi Cheng all day long. It's strange to say, Xiao Rongrong, who is three years younger than Shi Cheng, no matter how much she cries, as soon as she sees Shi Cheng, her little face will immediately bloom. Then Chong Shicheng stretched out her little arms and hugged Shi Cheng. As a result, people in the neighborhood can often see such a funny scene: a five-year-old boy with a two-year-old girl in his arms running around.

Summer 2006......

——The middle school entrance examination is approaching, and the students in the first class of the third grade of Yuguo Middle School are sitting in the classroom honestly, answering the review papers sent by the class teacher. Their class, a "male" teacher who had just graduated from the normal school and was no more than twenty-five years old, walked up and down the classroom, occasionally looking down to see how his students were answering their papers.

"Shi Cheng! How many times have I told you? Why don't you have a long memory at all? Look at this room, who solves problems like you? Ban Ren asked, standing beside a very ordinary young man, pointing to the scroll on the desk in front of him with his right hand.

Shi Cheng is very smart, and his academic performance is also at the top of his class. However, he has a problem with solving math problems, that is, he does not like to write the steps of solving problems. Because of this, he was not less disciplined by the homeroom teacher who taught mathematics. Looking up at his homeroom teacher, Shi Cheng looked embarrassed, scratched his head and explained, "Teacher, there's no need to write so much!" Why do you have to do so many steps for a math problem? Write a bunch of densely, teacher, don't you feel too troublesome when you read it?! ”

Looking at Shi Cheng's appearance, the head teacher patted Shi Cheng's back a little helplessly. Of course, the hit is not heavy. Although Shi Cheng is a little naughty, a little lazy, and a little ...... However, the head teacher still likes this student. Shaking his head, the head teacher pointed to the math problem that Shi Cheng had just solved on the paper, and said, "Shi Cheng! To solve math problems, be sure to write the process clearly. Have you forgotten what I said yesterday? When you take the high school entrance examination, you will be graded for solving math problems step by step. To learn mathematics, you have to have a rigorous attitude. Rigorous, rigorous, do you understand? This math problem is the same as when you eat and sleep. Can you skip all the process of eating and sleeping? I don't believe it, you sit down at the dinner table, and then get up again right away, and you'll be full? Hurry up and write me all the steps for these questions, or you won't want to have lunch today. When you want to write, write it all, you go to the cafeteria for lunch. ”

There are less than ten minutes left before the end of class. And Shi Cheng's paper has almost answered. If he completes all the steps of the previous questions now, it will take at least nearly twenty minutes. Twenty minutes! Eating in the school cafeteria can be said to be a race against time. So as soon as Shi Cheng heard the head teacher say that he couldn't go to the cafeteria if he couldn't finish the problem, he immediately put on a look of grievance: "Teacher, don't you?" In fact, I remember everything you said! You see, I have written all the steps in the following questions, can't I write all the steps? This class is about to end, and if I make up the steps of the previous question, then what else will I eat! If you have to ask me to make it up, it's fine, it's a big deal that I'll have a meal with you at noon. Anyway, the teacher doesn't have to line up to eat in the cafeteria, and the food is better than ours. ”

"As long as you have completed all the steps of the previous questions, you will ...... in a while" Before the head teacher finished speaking, there was a sudden knock on the door in the classroom.

The head teacher raised his head and shouted at the classroom door, "Come in!" ”

The classroom door opened, and a middle-aged man stood sideways in the doorway. His sweaty face was filled with a hint of anxiety. "Excuse me, teacher, I'm Shi Cheng's uncle, and I'm looking for him. You see......"

After listening to the middle-aged man's words, the head teacher first paused for a moment, and then looked back at Shi Cheng. His eyes were full of inquiry.

"Uncle, why are you here?" Shi Cheng didn't know why Uncle came to school, but he still stood up and shouted. Then, look back at your homeroom teacher. "Teacher, I want to take a leave of absence!"

"Seeing that class is about to end, what time off are you going to take? Go for it! Your uncle is still waiting at the door! After the head teacher finished speaking, he turned his head and nodded with a smile to the middle-aged man standing at the door.

"Uncle, why are you here?" Out of the classroom, Shi Cheng saw that his uncle was sweating and asked suspiciously.

"Your lord may not be able to do it." Shi Cheng's uncle's words were like a muffled thunder on a sunny day, which bombarded Shi Cheng.

Seeing Shi Cheng standing there motionless, Shi Cheng's uncle grabbed Shi Cheng's right hand and pulled him out. As he walked, he hurriedly said, "Hurry up!" The car is still waiting outside! I've taken a leave of absence from your principal......"

Shi Cheng was dragged out of school by his uncle, and then got into an Alto. Along the way, Shi Cheng didn't say a word. He didn't hear what his uncle said. In his mind, there is always a sentence: "Your grandfather may not be able to do it......"

When Shi Cheng arrived at the town hospital, it was already past one o'clock in the afternoon. As soon as Alto, where Shi Cheng was sitting, stopped, he pushed the car door and jumped out. However, after Shi Cheng ran into the front hall of the hospital, he realized that he didn't know where his grandfather was now.

Just when Shi Cheng felt dazed for a while, his uncle chased after him from behind: "Your father is in the inpatient department, 306 in the first district of the sixth treatment brain department." You go first, I haven't paid for the car yet! After Shi Cheng's uncle finished speaking, he patted Shi Cheng on the shoulder, then turned around and walked out of the hall......