prescalar = [1, 8, 64, 256, 1024]
freq = 8000000.0
print "     ",
for pre in prescalar :
    print "%12d" % (pre),
print
for x in xrange(0,256) :
    print "%-4d " % x,
    for pre in prescalar :
        print "%12.2f" %  (freq / (2*pre*(1+x)) ),
    print