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