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