k5_1.dat                wall    1 1 8
k5_2.dat                wall   10 1 8
k5_3.dat                wall   19 1 8
k5_4.dat                wall   28 1 8
k5_5.dat                wall    1 10 8
k5_6.dat                wall   10 10 8
k5_7.dat                wall   19 10 8
k5_8.dat                wall   28 10 8