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