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