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