"Does Chief Zheng have a black cloth? Cover my eyes so that I can't see. You can choose someone at random and walk on top of this firewood."
"From these footprints, I can identify the gender, height, weight, and age of the person I passed, and then find out who the person I passed is!"
...
"Judging from the traces, the footprints are more than seven inches long, so we can infer that the owner should be a man between 1.65 And 1.75 Meters tall!"
"But the footprints are shallow and the weight is between thirty and thirty-five kilograms!"
"The center is solid, the surroundings are void, and the center of gravity moves forward and backward, so the person wearing shoes obviously has small feet but big shoes!"
"The stride length is less than ten inches, the heels are hollow, the toes are inside, the feet are small and narrow, she must be a woman!"
"The steps are light and the steps are light, so she is still young and is a girl!"
"To sum up, the person I just passed must be a little girl about ten years old and between 1.3 And 1.4 Meters tall!"
