Guess the missing item from this list: β-6, β-8, γ-3, β-4, α-0, δ-2, γ-8, α-2, δ-1, α-3, α-7, γ-5, γ-1, β-0, γ-2, β-9, α-8, α-6, γ-7, γ-6, α-1, β-7, β-1, α-9, β-5, γ-4, δ-0, α-5, γ-0, α-4, β-3, γ-9.
Directly answer with only one item. Item format should match the list format. Provide no explanation. Answer format: "{item}."