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