4 6 6 < input/inp.52
3  2  3  < input/lu81
 5 2 4 < input/dat217
3 7 3 < input/inp.hf.26
< input/ad.1
1 2 3 < input/et.2
0 2 1 < input/ct.2 
2 7 9 < input/ft.6
