2. Given a quadrilateral $ABCD$ whose four interior angles satisfy $A>B>C>D$, let $\alpha$ represent the minimum of $180^{\circ}-A$, $A-B$, $B-C$, $C-D$, and its maximum value is $\alpha_{0}$; let $\beta$ represent the maximum of $180^{\circ}-A$, $A-B$, $B-C$, $C-D$, and its minimum value is $\beta_{0}$. Try to compare the sizes of $\alpha_{0}$ and $\beta_{0}$.
Answer: $\alpha_{0}=\beta_{0}$