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