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