To play backgammon, you must type the numbers of the points from
which pieces are to be moved.  For example, if the roll was '2  6', typing
'12 15' will move a piece from point 12 two spaces to point 14 and a piece
from point 15 six spaces to point 21.  If the moves must be made in the
opposite order, you must prepend the first number with a minus ('-').  Thus,
typing '-12 15' will move a piece from point 12 six spaces and a piece from
point 15 two spaces.
	If you want to move a single piece several times the sequence of
points from which it is to be moved must be typed.  For example, if the
roll is '3  5', typing '14  17' will move a piece from point 14 to point
17 and then to point 22.  If a double is rolled, you should enter four numbers.
	Brown pieces that have been removed from the board after being hit
by white are on point 0 and must be brought in before any other moves can be
made.  White pieces that are hit are removed to point 25.
	Illegal or excessive moves are detected, however if you choose to skip
part or all of your turn you may do so.
	Type a '?' when you are asked for your move and a list of available
actions will be printed.
	Good luck!!!