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