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