def mergeSPDX(spdxA: str, spdxB: str) -> str:
	"""Combine the spdx ids.

	Args:
		spdxA (str): spdx of the first license
		spdxB (str): spdx of the second license

	Returns:
		str: combined spdx
	"""
	if len(spdxA) == 0:
		return spdxB
	if len(spdxB) == 0:
		return spdxA
	return spdxA + "+" + spdxB