FLIPFLOP
               CREATIVE COMPUTING  MORRISTOWN, NEW JERSEY

THE OBJECT OF THIS PUZZLE IS TO CHANGE THIS:

X X X X X X X X X X

TO THIS:

O O O O O O O O O O

BY TYPING THE NUMBER CORRESPONDING TO THE POSITION OF THE
LETTER ON SOME NUMBERS, ONE POSITION WILL CHANGE, ON
OTHERS, TWO WILL CHANGE.  TO RESET LINE TO ALL X'S, TYPE 0
(ZERO) AND TO START OVER IN THE MIDDLE OF A GAME, TYPE 
11 (ELEVEN).

HERE IS THE STARTING LINE OF X'S.

1 2 3 4 5 6 7 8 9 10
X X X X X X X X X X

INPUT THE NUMBER?