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