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