Notes:
1 1.1 = maybe/definitely 1.1
s S   =			a small lecture
L lab = 		a lab

SBF = 122 + 204
TLJH = 207 + visits
(how much do NPF & ALR affect the 141 timetable #)
Putting in a preliminary lab/1.1 allocation. (Relative to the 1st semester, I
have to swap Tuesday labs between 1st & 2nd year, so to try to keep both years
available for some visits, I will also swap Thursday labs.)
This forces several many lecture choices etc.:
(I have made some choices between 105/106/111/141/107, and 207/209/243)

sem2	|  1st year	111111	|  2nd year		|  3rd/4th year
	|sbm	activity001042	|sbmxe	activity	|sbmie	activity
------------------------561712-------------------------------------------------
M9  ~1.1|...	lab  		|.....	  		|.....	.	
M10	|...	lab		|.B.XE	1		|..1..	1	
M11	|.bM	lab		|....E	1s	209	|..Mi.	1	
 M12	|.bM	lab		|..M.E	1s	231	|..Mi.	lunch	
 M1	|.""	lunch  		|..".e	lunch		|..""e	1.1	305
M2	|MMm	MT166		|.....	1s	207	|.....	1	
M3	|..M	1s	107	|..7..	lab		|4.1i.	.	
M4  ~1.1|SB.	  		|S....	lab		|4.1i.	.	

T9	|...	1s	111	|.....	lab		|...i.	1	
T10	|...	1s	141	|.....	lab		|.B1i.	.	
T11	|...	(1)s	122	|..6..	(1)s	235	|...i.	1.1	343
 T12	|...	lunch		|.B.XE	tutSM		|..1i.	lunch	visit
 T1	|...	lab		|."."e	lunch		|.."ie	1.1	305
T2	|...	lab		|..4.E	1s	243	|SBMiE	EM250	
T3	|.bM	lab		|.B..E	1.1	204	|.B.i.	.	visit
T4	|.b.	lab		|....E	1.1s	209	|.B.i.	.	visit

W9	|...	1s	141	|.....	lab		|...i.	1	
W10	|...	1s	105	|..M..	lab		|.b.ie	?	
W11(153)|...	1s	106	|..6..	S/tutB	224	|.b1i.	?	
W12(153)|MM.	MT166		|.....	1s	207	|..Mi.	1	

R9	|..M	lab		|.....	1s		|.....	1	
R10	|...	lab		|..4X.	1s	204	|..1..	1	
R11	|...	lab		|....E	1s	243	|..M.e	1	
 R12~1.1|...	lab		|..6..	lunch		|..M".	lunch	visit
 R1 ~1.1|...	lunch		|..".e	lab		|.."ie	.	
R2	|Sb.	(ex)		|S..XE	lab		|.b1i.	1.1	343
R3	|.b.	 s	122	|....E	lab		|.B.i.	.	visit
R4	|...	1s	107	|.B..E	lab		|.B.i.	.	visit

F9	|...	1s	106	|.....	lab		|.....	1	
F10	|...	1s	111	|..6.E	lab		|.bM..	.	
F11	|...	1s	105	|..6.E	(1)S	235	|SbM.E	EM250	
 F12	|..M	lunch		|..M.E	1s	231	|S.M.E	EM250	
 F1	|.."	lab		|..".e	lunch		|".".e	lunch	
F2	|...	lab		|..M..	1s	224	|..1..	1	
F3 (152)|...			|..7..	1s		|.B...	.	
F4 (152)|...			|.....			|.B...	.	

use of 1.1:
	 SBM	CS105		 SBMX.	CS209		 SB.	CS305
	 SBM	CS106		 SBMx.	CS207		 SBM	CS343
	 SBM	CS111		 SB0x.	CS243
	 SB.	CS107		 SB.X.	CS231
	 SB.+M2	CS141		 S....	CS204
	 	CS141 at same time as 2nd year lab
small CS lectures:					(18)
	 S..	CS122		 SB.X.	CS235		i=3382
 				 S...E	CS224		EE=3232
							(e=3352)