4 9 4 < input/inp.44
4 2 2 < input/inp.77
 0 0 0 < input/tc.229
4  7  10  < input/lu76
 0 1 4 < input/dat124
6 9 10 < input/add.50
10 7 9 < input/ft.26
 5 4 5 < input/dat636
