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