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