a = [1,2,3,4,4]
b = [1,3]
print "a = "
print a
print "\n"
print "b = "
print b
print "\n"
print "a - b = "
print a - b
print "\n"
a = [1,2,3,4,4]
b = [4]
print "a = "
print a
print "\n"
print "b = "
print b
print "\n"
print "a - b = "
print a - b
print "\n"
a = [1,2,3,4,4]
b = [0,5]
print "a = "
print a
print "\n"
print "b = "
print b
print "\n"
print "a - b = "
print a - b
print "\n"

