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