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