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