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