 3 3 2 < input/dat378
 2 3 0 < input/dat169
 0 1 1 < input/dat356
6  7  10  < input/lu14
4 6 10 < input/inp.86
0 0 0 < input/nt.20
7  4  9  < input/lu495
1 2 1 < input/dt.10
