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