Semien Pantalikin's math teacher assigned an extremely difficult exercise to the whole class. This is a math problem that almost children can hardly understand. To make matters worse, they only have 20 minutes to solve this problem!
　　 Semien always has a way to exaggerate all events and phenomena in life, see the bad side of everything, and tell himself "I'm done." But as a visionary and dreamer, in order to solve the problem raised by the teacher and make it clearer, Semien came up with an exciting story to help him understand why the two farmers in the topic To leave from point A and reach point B, as well as several other variables in the question. But when the story becomes interesting...