exam1 A	exam2 A	exam1 B	exam2 B	exam1 C	exam2 C
49	54	12	17	37	39
52	57	52	62	44	41
55	60	55	52	32	33
58	62	58	73	37	34
61	65	61	69	35	41
64	68	64	71	41	45
67	70	67	72	42	33
70	73	70	80	45	36
73	76	73	58	88	78
76	78	76	60	72	74
79	81	79	67	75	81
82	84	82	52	81	77
85	87	85	76	82	94
88	89	88	69	71	84
99	12	91	70	82	87