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