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