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