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