A(2)-(1)-(5)-(4)-(3)-(6)-(7)-(8)
B(1)-(2)-(3)-(4)-(5)-(6)-(7)-(8)
C(2)-(1)-(3)-(4)-(5)-(6)-(7)-(8)
D(1)-(3)-(5)-(4)-(6)-(2)-(8)-(7)
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