new index	atom name	original index
1	C	8
2	C	6
3	C	9
4	C	7
5	C	5
6	C	11
7	C	10
8	O	2
9	O	4
10	O	1
11	O	3
12	H	17
13	H	18
14	H	19
15	H	13
16	H	14
17	H	20
18	H	21
19	H	15
20	H	16
21	H	12
22	H	23
23	H	22