 4 4 0 < input/dat229
2 3 7 < input/inp.99
 4 4 1 < input/dat121
2 7 6 < input/inp.19
10  1  10  < input/lu108
7  2  5  < input/lu147
 1 3 1 < input/dat515
5 4 4 < input/dat217
