local SOME_PRIME = 16777213

CheckSum = function(text)
	local counter = 1
	local len = string.len(text)
	for i=1,len do
		counter = counter + string.byte(text, i)*math.pow(31, len- i)
	end
	counter = math.mod(counter, SOME_PRIME)
	return string.format("%06x", counter)
end