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