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