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