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