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