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