P3 # feep.p3.hidepth.master.ppm 4 4 7919 # prime number chosen for test purposes 0 0 0 0 0 0 0 0 0 7919 0 7919 0 0 0 0 7919 3695 0 0 0 0 0 0 0 0 0 0 0 0 0 7919 3695 0 0 0 7919 0 7919 0 0 0 0 0 0 0 0 0