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