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