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