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