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