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