云计算Linux模块C卷

A	C	D	C	D	

B	B	A	B	C	

B	A	B	B	D	

D	A	B	A	B	

D	C	B	B	C

B	D	B	C	A	

D	D	C	B	A	

B	D	B	B	B	

D	C	B	B	A	

C	A	A	A	C	