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