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