
while weight = gets.to_f

	if weight <= 48.0 then
		print "lighy fly\n"
	elsif weight > 48.0 && weight <= 51.0 then
		print "fly\n"
	elsif weight > 51.0 && weight <= 54.0 then
		print "bantam\n"
	elsif weight > 54.0 && weight <= 57.0 then 
		print "feather\n"
	elsif weight > 57.0 && weight <= 60.0 then
		print "light\n"
	elsif weight > 60.0 && weight <= 64.0 then
		print "light welter\n"
	elsif weight > 64.0 && weight <= 69.0 then
		print "welter\n"
	elsif weight > 69.0 && weight <= 75.0 then
		print "light middle\n"
	elsif weight > 75.0 && weight <= 81.0 then
		print "middle\n"
	elsif weight > 81.0 && weight <= 91.0 then
		print "light heavy\n"
	else
		print "heavy\n"
	end
end