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