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