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