new index	atom name	original index
1	C	13
2	C	11
3	C	6
4	C	9
5	C	10
6	C	8
7	C	4
8	C	12
9	C	5
10	C	7
11	N	3
12	N	2
13	O	1
14	H	22
15	H	21
16	H	14
17	H	15
18	H	18
19	H	19
20	H	20
21	H	16
22	H	23
23	H	24
24	H	17
25	H	25