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