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