Puzzle 326: Bending Four Winds

Rules: Draw lines starting in the centers of numbered cells. Every empty cell in the grid must be used by exactly one line. Lines can only be horizontal or vertical, and cannot occupy other numbered cells. Lines can bend, but only once. Numbers indicate the sum of length of all lines that begin in that cell. Shaded cells indicate that a line bends in that cell.
Of all the lines beginning at any numbered cell, only one line can bend.