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