Problem	Answer
1	a
2	a
3	c
4	a
5	e
6	b
7	c
8	d
9	b
10	c
11	d
12	c
13	b
14	c
15	c
16	e
17	a
18	c
19	c
20	c
21	e
22	c
23	d
24	d
25	b
26	d
27	c
28	d
29	e
30	e
31	d
32	c
33	a
34	a
35	c
36	b
37	d
38	b
39	c
40	a
41	a
42	b
43	c
44	a
45	e
46	b
47	b
48	d
49	c
50	b