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