new index	atom name	original index
1	C	10
2	C	8
3	C	9
4	C	4
5	C	3
6	C	7
7	C	1
8	C	2
9	O	5
10	O	6
11	H	16
12	H	17
13	H	18
14	H	14
15	H	15
16	H	12
17	H	11
18	H	13
