new index	atom name	original index
1	C	10
2	C	11
3	C	7
4	C	9
5	C	14
6	C	13
7	C	8
8	C	15
9	C	12
10	I	2
11	I	1
12	N	6
13	O	4
14	O	3
15	O	5
16	H	19
17	H	20
18	H	16
19	H	17
20	H	18
21	H	21
22	H	22
23	H	24
24	H	23