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