Tom would like 3 pints of home brew today and an additional
4 pints of home brew tomorrow. Dick is willing to sell a
maximum of 5 pints total at a price of $3.00 per pint today and
$2.70 per pint tomorrow. Harry is willing to sell a maximum of 4
pints total at a price of $2.90 per pint today and $2.80 per pint
tomorrow.