 4 2 1 < input/dat777
8  5  4  < input/lu302
 5 0 2 < input/dat232
 1 2 3 < input/dat620
6 1 0 < input/inp.27
 3 4 2 < input/dat407
5 3 9 < input/add.302
 1 0 1 < input/dat063
