x=2p(1-p)2+p^2(1-p^(2))4+(1-p)^(2)(1-(1-p)^(2))4+p^4(2p(1-p))6+(1-p)^4(2p(1-p))6+p^6(1-p^2)8+(1-p)^6(1-(1-p)^2)8+p^4(1-p)^2 8+(1-p)^4 p^2 8+(p^8+(1-p)^8)(8+x)

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