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