(A)
----------------|----------------
2-2-2-2-2-2-2-2-|2-2-2-2-2-2-2-2-
----------------|----------------
----------------|----------------
----------------|----------------
----------------|----------------
2-2-2-2-2-2-2-2-|2-2-2-2-2-2-2-2-
----------------|----------------
----------------|----------------
----------------|----------------
0-0-0-0-0-0-0-0-|0-0-0-0-0-0-0-0-
----------------|----------------
----------------|----------------
----------------|0-0-0-0-0-0-0-0-
3-3-3-3-3-3-3-3-|----------------
----------------|----------------
(B)
----------------|----------------
----------------|----------------
3-3-3-3-3-3-3-3-|----------------
----------------|3-3-3-3-3-3-3-3-
----------------|----------------
----------------|----------------
----------------|----------------
1-1-1-1-1-1-1-1-|3-3-3-3-3-3-3-3-
----------------|----------------
0-0-0-0-0-0-0-0-|----------------
----------------|0-0-0-0-0-0-0-0-
----------------|----------------
----------------|----------------
----------------|0-0-0-0-0-------
3-3-3-3-3-3-3-3-|----------------
----------------|----------------
(C)
----------------|----------------
----------------|----------------
----------------|3-3-3-3-3-3-3-3-
0-0-0-0-0-0-0-0-|----------------
----------------|----------------
----------------|----------------
0-0-0-0-0-0-0-0-|2-2-2-2-2-2-2-2-
----------------|----------------
(D)
----------------|----------------
----------------|0-0-0-0-0-0-0-0-
3-3-3-3-3-3-3-3-|----------------
----------------|----------------
----------------|----------------
----------------|----------------
2-2-2-2-2-2-2-2-|2-2-2-2-2-2-2-2-
----------------|----------------
----------------|----------------
----------------|----------------
----------------|----------------
0---------------|----------------
----------------|
----------------|
----------------|
----------------|
‰‰‘t‡˜FAx2¨B¨Cx2¨D