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