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