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