new index	atom name	original index
1	C	1
2	C	2
3	C	3
4	C	4
5	N	7
6	O	6
7	O	5
8	O	8
9	H	10
10	H	11
11	H	9
12	H	12
13	H	13
14	H	15
15	H	16
16	H	14
17	H	17