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