aluno	P1	P2
1	8.5	8
2	3.5	2.8
3	7.2	6.5
4	5.5	6.2
5	9.5	9
6	7	7.5
7	4.8	5.2
8	6.6	7.2
9	2.5	4
10	7	6.8
11	7.4	6.5
12	5.6	5
13	6.3	6.5
14	3	3
15	8.1	9
16	3.8	4
17	6.8	5.5
18	10	10
19	4.5	5.5
20	5.9	5