近年来，生儿育女成为了热点话题，有人不愿意生育，但也有人觉得应该要更完善相关的待遇补贴政策等等。同时，在某节目中，人口专家呼吁要把生孩子变成一份有收入的工作。
I have a sample program, which needs to execute 3 methods in a particular order. And after executing each method, should do error handling. Now i did this in a normal fashion, w/o using delegates like
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