 4 3 2 < input/dat554
 2 2 5 < input/dat728
0 2 1 < input/inp.55
1 2 1 < input/dt.10
 1 2 4 < input/dat196
4  7  10  < input/lu76
3  10  5  < input/lu13
2 8 6 < input/add.21
