Course units that can clash, as students don't do these combinations
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3071, 3101, 3052, 3432 fixed already

3001 & 3041 musn't clash with 2081 = Tu11, Fr1
	- all other 3rd year modules can ignore 2nd year!

the following CS modules can clash:
	3001: 3121
	3131: 3341
	3212: 3162/3402/3112/3172/3262/3382/3432
	3232: 3162/3402

EM2491 can clash with 3411 (EM2502 had different clashes last year)

EM2502: CS3212

BM modules may clash with (last year not 3131, 3151, 3402)
	3001 3041 (3411 3421)
	3012 3212 3232

BM3032: CS3052 CS3112 CS3172
BM3041: CS3251

MT modules may clash with:
	3001, 3131, 3251, 3311, 3341, 3411, 3421, 3451
	3012, 3052, 3212, 3232, 3382, 3402

        MT4321 MT3031 MT3361 MT3061 MT3211 MT3241 MT3071 MT3171 MT3121 MT3101 MT3341 MT3111
CS3041: MT4321 MT3031 MT3361                                    MT3121 MT3101 MT3341 MT3111
CS3071: MT4321        MT3361                                                  MT3341
CS3101: MT4321        MT3361        MT3211 MT3241 MT3071 MT3341
CS3121: MT4321        MT3361                                           MT3101 MT3341 MT3111
CS3151: MT4321 MT3031 MT3361 MT3061 MT3211 MT3241               MT3121 MT3101 MT3341 MT3111
CS3321:                      MT3061 MT3211               MT3171 MT3121               MT3111

        MT3672 MT3662 MT3562 MT3612 MT3532 MT3062 MT3072 MT3042 MT3572
CS3112: MT3672                      MT3532 MT3062 MT3072 MT3042 MT3572
CS3162:
CS3172:                             MT3532 MT3062 MT3072        MT3572
CS3262:               MT3562 MT3612 MT3532 MT3062 MT3072 MT3042 MT3572
CS3432: MT3672 MT3662        MT3612 MT3532               MT3042 MT3572

MT4321: CS3041 CS3071 CS3101 CS3121 CS3151       
MT3031: CS3041                      CS3151       
MT3361: CS3041 CS3071 CS3101 CS3121 CS3151       
MT3061:                             CS3151 CS3321
MT3211:               CS3101        CS3151 CS3321
MT3241:               CS3101        CS3151       
MT3071:               CS3101                     
MT3171:                                    CS3321
MT3121: CS3041                      CS3151 CS3321
MT3101: CS3041               CS3121 CS3151       
MT3341: CS3041 CS3071 CS3101 CS3121 CS3151       
MT3111: CS3041               CS3121 CS3151 CS3321

MT3672: CS3112               CS3432
MT3662:                      CS3432
MT3562:               CS3262
MT3612:               CS3262 CS3432
MT3532: CS3112 CS3172 CS3262 CS3432
MT3062: CS3112 CS3172 CS3262
MT3072: CS3112 CS3172 CS3262
MT3042: CS3112        CS3262 CS3432
MT3572: CS3112 CS3172 CS3262 CS3432