"Born one after another, 345678. There are many birds in the phoenix, and there are thousands of stone valleys in the world! " After calculation, "one gives birth to one" is 1+ 1 = 2. "345678, but 3× 4 = 12, 5× 6 = 30, 7× 8 = 56. The sum of the four groups of numbers is exactly 100.