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