ex1.bash: res=31314
	time: 0:00.07 real, 0.06 user, 0.00 sys
	context-switch:	2+1, page-faults: 0+168

ex2.bash: res=32760
	time: 1:21.92 real, 81.89 user, 0.01 sys
	context-switch:	462+1, page-faults: 0+5135