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