static SCORE Subst(const Seq &seqA, const Seq &seqB, unsigned i, unsigned j)
	{
	assert(i < seqA.Length());
	assert(j < seqB.Length());

	unsigned uLetterA = seqA.GetLetter(i);
	unsigned uLetterB = seqB.GetLetter(j);
	return VTML_SP[uLetterA][uLetterB] + g_scoreCenter;
	}