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