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