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