The points $$\(A, B, C, D\)$$ and $$\(E\)$$ lie on the circle. $$\(P A Q\)$$ is a tangent to the circle at $$\(A\)$$ and $$\(E C=E B\)$$. Angle $$\(E C B=80^{\circ}\)$$ and angle $$\(A B E=40^{\circ}\)$$. Find the values of $$\(v, w, x, y\)$$ and $$\(z\)$$. $$\(v=\)$$ ............... . $$\(w=\)$$ ............... . $$\(x=\)$$ ............... . $$\(y=\)$$ ............... . z= ...............

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