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