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