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