string toUTF8(uint32_t cp)
{
	char utf8[4];
	int len = 0;

	if (cp <= 0x007F)
	{
		utf8[0] = static_cast<char>(cp);
		len = 1;
	}
	else
	{
		if (cp <= 0x07FF)
		{
			utf8[0] = 0xC0;
			len = 2;
		}
		else if (cp <= 0xFFFF)
		{
			utf8[0] = 0xE0;
			len = 3;
		}
		else if (cp <= 0x10FFFF)
		{
			utf8[0] = 0xF0;
			len = 4;
		}
		else
			throw std::invalid_argument("invalid codepoint");

		for (int i = 1; i < len; ++i)
		{
			utf8[len - i] = static_cast<char>(0x80 | (cp & 0x3F));
			cp >>= 6;
		}

		utf8[0] |= static_cast<char>(cp);
	}

	return std::string(utf8, len);
}


string utf8 = toUTF8(final_simbol);
cout << utf8 << endl;