new index	atom name	original index
1	C	12
2	C	10
3	C	11
4	C	4
5	C	7
6	C	8
7	C	3
8	C	6
9	C	5
10	C	9
11	O	1
12	O	2
13	H	23
14	H	21
15	H	22
16	H	15
17	H	16
18	H	19
19	H	20
20	H	13
21	H	14
22	H	17
23	H	18
24	H	24