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