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