tempo	fator	bloco1	bloco2
10	C	1	1
14	D	2	1
7	A	3	1
8	B	4	1
7	B	1	2
18	C	2	2
11	D	3	2
8	A	4	2
5	A	1	3
10	B	2	3
11	C	3	3
9	D	4	3
10	D	1	4
10	A	2	4
12	B	3	4
14	C	4	4