Draw a Venn diagram to represent the following sets, placing each element in the correct region of the diagram. \[ \begin{array}{l} U=\{1,2,3,4,5,6,7,8,9,10,11,12,13,14,15\} \\ A=\{2,4,6,8\} \\ B=\{1,2,3,4,5,6,7,14,15\} \\ C=\{11,13,15\} \end{array} \] Then shade in the following: \( A-\overline{(B \sqcup C)} \).