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