new index	atom name	original index
1	C	4
2	C	5
3	C	3
4	C	6
5	C	9
6	C	8
7	C	7
8	C	2
9	C	1
10	C	10
11	N	11
12	O	12
13	O	13
14	H	15
15	H	16
16	H	14
17	H	17
18	H	19
19	H	20
20	H	18
21	H	21
22	H	22
