"About that." Song He said, "There's an adjustment period when your intelligence is rising sharply. Once you get used to it, you won't need to keep inhaling oxygen."
Yuan Tiangang and Yang Yu suddenly understood.
"Anything else?" Song He asked.
"Besides Hyperthymesia, there's also Super Calculation Syndrome." Yang Yu said, "Normally, whenever I see something, I automatically perform rapid calculations in my head. It actually has a major impact—much more than Hyperthymesia—and often causes trouble in daily life."
"Rapid calculations?" Song He asked curiously. "What kind of rapid calculations?"
"Random." Yuan Tiangang smiled bitterly. "It can go in any direction. Just like Hyperthymesia making you recall TV dramas, it's uncontrollable."
Song He and Xiang Xiaotong looked at each other, both somewhat confused. They didn't have Super Calculation Syndrome.
"Give me an example?" Song He asked.
Yuan Tiangang turned his head and looked around. In the end, his eyes settled on the clock on the wall.
"For example, the time. Looking at the clock has triggered Super Calculation Syndrome several times. The last time, I calculated palindromic numbers. It's 12:03 now, so that gives us the number 1203. Add 3021 to 1203, and you get 4224—a palindromic number just like that." Yuan Tiangang said.
"Most numbers can be used to obtain palindromic numbers this way. Some only require one step, while others need more than a hundred. But there are exceptions. For example, 196 can't produce a palindromic number this way. I thought about it for a long time but couldn't figure out why. I also found 295, 394, 493... There are quite a lot."
"You discovered this yourself?" Song He raised an eyebrow.
"Yes. I thought about it during my free time over the past few weeks." Yuan Tiangang nodded.
"When you go back, you can study something called a