complement the solution to Exercise 10.1-2.

The procedure Push left last time is now complemented.

Modified are the following 2 files:

	10.1-2.pdf
	10.1-2.tm

Thank you!
							Lawrence X. Amlord
							  May 17th, 2014
							  Xi'an, China
modify the structure of solution in Exercise 10.1-1.

Modified are the following 2 files:

	10.1-1.pdf
	10.1-1.tm

Thank you!
							Lawrence X. Amlord
							  May 17th, 2014
							  Xi'an, China
add solution to Exercise 10.1-3.

Included are the following 2 files:

	10.1-3.pdf
	10.1-3.tm

Thank you!
							Lawrence X. Amlord
							  May 17th, 2014
							  Xi'an, China