new index	atom name	original index
1	C	11
2	C	7
3	C	8
4	C	4
5	C	5
6	C	3
7	C	1
8	C	2
9	N	10
10	O	12
11	O	9
12	O	6
13	H	18
14	H	19
15	H	20
16	H	15
17	H	16
18	H	17
19	H	13
20	H	21
21	H	14
