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