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