func isMay(x scoreAdjustTyp) bool {
	return mayToMust(x) != 0
}

func isMust(x scoreAdjustTyp) bool {
	return mustToMay(x) != 0
}

func mayToMust(x scoreAdjustTyp) scoreAdjustTyp {
	for _, v := range mayMustAdj {
		if x == v.may {
			return v.must
		}
	}
	return 0
}

func mustToMay(x scoreAdjustTyp) scoreAdjustTyp {
	for _, v := range mayMustAdj {
		if x == v.must {
			return v.may
		}