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