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