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