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