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