new index	atom name	original index
1	C	15
2	C	13
3	C	11
4	C	9
5	C	10
6	C	8
7	C	6
8	C	12
9	C	5
10	C	7
11	C	14
12	N	4
13	O	2
14	O	3
15	O	1
16	H	25
17	H	24
18	H	23
19	H	22
20	H	21
21	H	18
22	H	19
23	H	20
24	H	16
25	H	17
26	H	26