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