new index	atom name	original index
1	C	3
2	C	13
3	C	2
4	C	12
5	C	4
6	C	14
7	C	1
8	C	11
9	C	10
10	C	9
11	C	5
12	C	8
13	C	6
14	C	7
15	H	17
16	H	23
17	H	16
18	H	22
19	H	18
20	H	24
21	H	15
22	H	21
23	H	20
24	H	19
