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