Nestor and Ruth love to play hide and seek. It's a simple game, but it continues to amuse them. It consists of the following: Ruth hides up or down. Nestor can search up or down, but not in both places. If he finds Ruth, Nestor gets a scoop of ice cream and Ruth none. If he can't find Ruth, Ruth gets a scoop of ice cream and Nestor none. Put the results in the attached matrix.