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