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