features:<br />101(100┺)<br />102(1k┺)<br />103(10k┺)<br />104(100k┺)<br />105(1m┺)<br />201(200┺)<br />202(2k┺)<br />203(20k┺)<br />204(200k┺)<br />205(2m┺)<br />500（50┺）<br />501(500┺)<br />502(5k┺)<br />503(50k┺)<br />504(500k┺)<br />a total of 15 kind