The circuit consists of two AND gates, two NOT gates, and an OR gate. The inputs to the top AND gate are A and $\overline{B}$, giving $A\overline{B}$. The inputs to the bottom AND gate are $\overline{A}$ and B, giving $\overline{A}B$. The final OR gate combines these to give $Y = A\overline{B} + \overline{A}B$.