Hector runs a cheese shop in a large city. One of his truck is involved in a liability claim, and two primary business auto policies apply to the claim. Policy A has a $300,000 liability limit and Policy B has a $500,000 liability limit. The covered amount of the claim is determined to be $160,000. Using the Other Insurance provision of in the Business Auto Coverage Form conditions, how much coverage, if any, is provided to Hector by Policy A and Policy B?