Assume that H wishes to purchase one contract of corn from N, the seller of corn. He buys a contract (of 5,000 bushels), which trades on the first day of June at $3.68. The value of the contract is $18,400. H is long on the contract and N is short on it. What are the possible dangers (losses) for the clearinghouse in the event of refusals by any party to fulfill their obligations? Assume that the price of corn per bushel goes up to $4.00 and then falls to $3.10.