new index	atom name	original index
1	C	6
2	C	3
3	C	8
4	C	4
5	C	7
6	C	2
7	C	1
8	C	5
9	C	10
10	O	9
11	O	11
12	O	12
13	H	16
14	H	14
15	H	18
16	H	15
17	H	17
18	H	13
19	H	19
20	H	20
