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