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