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