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