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