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