Add my answer to Exercise 3.22.

Included are the following 2 files:

	Exercise_3.22.scm
	Test_of_Exercise_3.22.scm

Thank you!
							Lawrence X. Amlord
							  Sept 27th, 2013
							  Xi'an, China
Add my answer to Exercise 3.23.

Included are the following 2 files:

	Exercise_3.23.pdf
	Exercise_3.23.tm

Thank you!
							Lawrence X. Amlord
							  Sept 28th, 2013
							  Xi'an, China