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