tmp.pdb
tmp.out
     2 #duplex 
 79 # number of basepairs
     0 0  # expl bp numbering numbering / hetero atom
-38 38
-37 37
-36 36
-35 35
-34 34
-33 33
-32 32
-31 31
-30 30
-29 29
-28 28
-27 27
-26 26
-25 25
-24 24
-23 23
-22 22
-21 21
-20 20
-19 19
-18 18
-17 17
-16 16
-15 15
-14 14
-13 13
-12 12
-11 11
-10 10
-9 9
-8 8
-7 7
-6 6
-5 5
-4 4
-3 3
-2 2
-1 1
0 0
1 -1
2 -2
3 -3
4 -4
5 -5
6 -6
7 -7
8 -8
9 -9
10 -10
11 -11
12 -12
13 -13
14 -14
15 -15
16 -16
17 -17
18 -18
19 -19
20 -20
21 -21
22 -22
23 -23
24 -24
25 -25
26 -26
27 -27
28 -28
29 -29
30 -30
31 -31
32 -32
33 -33
34 -34
35 -35
36 -36
37 -37
38 -38
39 -39