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