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