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