new index	atom name	original index
1	C	7
2	C	1
3	C	5
4	C	2
5	C	4
6	C	6
7	C	3
8	C	9
9	O	8
10	O	10
11	H	17
12	H	16
13	H	15
14	H	11
15	H	14
16	H	12
17	H	13
18	H	18
