new index	atom name	original index
1	C	16
2	C	17
3	C	10
4	C	12
5	C	15
6	C	18
7	C	8
8	C	7
9	C	13
10	C	19
11	C	11
12	C	14
13	C	9
14	Cl	1
15	Cl	2
16	O	5
17	O	6
18	O	4
19	O	3
20	H	27
21	H	26
22	H	25
23	H	28
24	H	29
25	H	21
26	H	22
27	H	23
28	H	24
29	H	30
30	H	31
31	H	20
