Where did the ancestors of six toenails come from?

"Who is the ancient locust who moved here? Take off your little toe and check your armor. " . This folk song is not only widely circulated, but also used as evidence to identify villagers and descendants of ancient Huai immigrants. On trains, in hotels, in military camps, in university dormitories and even in other countries, people from foreign countries get together to ask about their hometown and check their ancestral home. They often take off their shoes and pull their socks to show their feet to see if the nails of their little toes are complicated. If someone has a few vertical stripes on his fingernails, which look like two nails, then his ancestors moved here from under the big pagoda tree in Hong Tong. So, they immediately recognized each other as descendants of Gu Huai, and they thought they were Hong Dong's hometown. So I sat around and told the historical facts and anecdotes when I touched the people. Compared with the rumors from my ancestors, I miss my hometown and my ancestors more. "People who moved from the same old tree meet each other after several generations, and they are happy." The cordial and friendly friendship is very strong.