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