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