各位同学大家好：
相信大家在看助教所提供的hw3.pdf时，在作业要求的部分应该有看到下列内容：
2. Report (30%) You should also introduce and discuss about your design.
Following are some requirements of your report.
Circuit diagram (15%)
Plot the circuit diagram of your design. You are encouraged to plot it
hierarchically so that the reader can understand your design easily.
这里的＂circuit diagram＂只要画到逻辑闸等级(gate-level)就可以了，
也就是AND，OR这种逻辑闸就可以了，不需要画到电晶体(MOS)层级