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