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