new index	atom name	original index
1	C	8
2	C	7
3	C	5
4	C	6
5	C	3
6	C	9
7	C	2
8	C	4
9	O	1
10	H	13
11	H	14
12	H	15
13	H	16
14	H	11
15	H	12
16	H	10
17	H	17