print((function (f, s)
	return f(s)
end)(function (s)
	function mod15()
		local band, lshift = bit.band, bit.lshift
		local r, i = 0, #s
		for e in s:gmatch(".") do
			e = tonumber(e)
			if band(i,1) == 0 then e = lshift(e,2) end
			r, i = r+e, i-1
		end
		return r%15
	end
	local n = mod15()
	return n == 0 and "FizzBuzz" or
		n%3 == 0 and "Fizz" or n%5 == 0 and "Buzz" or s
end, io.stdin:read("*l")))