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	13
8	O	12
9	O	11
10	O	10
11	O	9
12	O	7
13	O	8
14	H	18
15	H	19
16	H	17
17	H	16
18	H	15
19	H	14
20	H	25
21	H	24
22	H	23
23	H	22
24	H	21
25	H	20