new index	atom name	original index
1	C	4
2	C	6
3	C	5
4	C	1
5	C	8
6	C	2
7	C	7
8	C	3
9	O	9
10	H	14
11	H	16
12	H	15
13	H	21
14	H	20
15	H	22
16	H	18
17	H	19
18	H	17
19	H	10
20	H	11
21	H	23
22	H	12
23	H	13
