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