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