Table A: Inventory Stock Product Store A Store B Store C X 543 356 643 Y 364 476 419 Z 376 903 409 Table B: July Unit Sales Product Store A Store B Store C X 102 78 97 Y 98 87 59 Z 54 89 79 Table A shows the total inventory of three products for three Sports Equipment Corporation stores on July 1. Table B shows unit sales data for the month of July. If you create a matrix, C, to show the inventory at the end of July, the value of the entry represented by c22 is . In a matrix with components aij, which represent unit sales for July, the maximum possible value that a31 can have is .