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