−v2u5 + vu5−v3u4 + 3v2u4−3vu4 + u4 + 2v3u3−5v2u3 + 5vu3−2u3−2v3u2 + 5v2u2−5vu2 + 2u2 + v3u−3v2u + 3vu−u + v2−v