θ(z1x)decodezwithqθ(zx)decodez1,z2,z3withqθ(z1,z2,z3x)(xz1)encodexwithpθ(xz)encodex,z1,z2withpθ(x,z1,z2z3)(z2z1)encodezwithp(z)(z1z2)encodez3withp(z3)(z3z2)(z2z3)ReceiverReceiverp(z3)Bit-Swap:...