new index	atom name	original index
1	C	1
2	C	5
3	C	2
4	C	6
5	C	7
6	C	3
7	C	4
8	C	8
9	C	10
10	O	13
11	O	9
12	O	11
13	O	12
14	H	14
15	H	16
16	H	15
17	H	17
18	H	18
19	H	19
20	H	21
21	H	20
