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