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