123456789,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,
31,32,33,34,35,36,37,38,39...1234...40,41,42,43,44,45,46,47,48,
49...12345...50,51,52,53,54,55,56,57,58,59...123456...60,61,62,63,
64,65,66,67,68,69...1234567...70,71,......
一直数到99.这是1周前.
现在至少到50不用中间加数了.