(A)
----------------|----------------
----------------|----------------
5-5--5-55-5-5-5-|--5----55-5-5-5-
----------------|----------------
----------------|----------------
----------------|----------------
----------------|----------------
6-6--6-66-6-6-6-|--6---666-6-6-6-
----------------|----------------
----------------|----------------
5-5--5-55-5--5-5|5-5--5-55-5--5-5
----------------|----------------
----------------|----------------
----------------|----------------
----------------|----------------
6-6--6-66-6--6-6|6-6--6-66-6-6-6-
----------------|----------------
----------------|----------------
----------------|----------------
2-2--2-22-2--2-2|2-2--2-22-2--2-2
----------------|----------------
----------------|----------------
5-5--5-55-5--5-5|5-5--5-55-5-5-5-
----------------|----------------
----------------|----------------
----------------|----------------
----------------|----------------
2-2--2-22-2--2-2|2-2--2-22-2--2-2
----------------|----------------
----------------|----------------
5-5--5-55-5--5-5|5-5-5-5-7---7---
----------------|----------------
(B)
----------------|----------------
----------------|1-1-1-11-11-1-1-
----------------|----------------
3-3-3-33-33-3-3-|----------------
----------------|----------------
----------------|----------------
1-1-1-11-11-1-1-|1-1-1-1-111-1-1-
----------------|----------------
----------------|----------------
1-1-1-11-11-1-1-|3-3-3-33-33-3-3-
----------------|----------------
----------------|----------------
----------------|----------------
----------------|----------------
1-1-1-11-11-1-1-|1-1-1-1-111-1-1-
----------------|----------------
(C)
----------------|----------------
----------------|----------------
----------------|----------------
3-3--3-33-3--3-3|3-3--3-33-3--3-3
----------------|----------------
----------------|----------------
----------------|----------------
3-3--3-33-3--3-3|3-3--3-33-3--3-3
----------------|----------------
1-1--1-11-1--1-1|----------------
----------------|3-3--3-33-3--3-3
----------------|----------------
----------------|----------------
----------------|----------------
----------------|----------------
3-3--3-33-3--3-3|3-3--3-3-33-3-3-
----------------|
----------------|
----------------|
----------------|
(D)
----------------|----------------
1-1-1-11-11-1-1-|3-3-3-33-33-3-3-
----------------|----------------
----------------|----------------
----------------|----------------
----------------|----------------
1-1-1-11-11-1-1-|1-1-1-11-11-1-11
----------------|----------------
----------------|----------------
----------------|----------------
1-1-1-111-1-1-1-|1---------------
----------------|----------------
‰‰‘t‡˜FA¨B¨C¨Bx2¨D