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