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