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