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