new index	atom name	original index
1	C	7
2	C	6
3	C	5
4	C	4
5	C	1
6	C	2
7	O	3
8	O	8
9	H	17
10	H	18
11	H	19
12	H	15
13	H	16
14	H	13
15	H	14
16	H	11
17	H	12
18	H	9
19	H	10
20	H	20
