cudy[9], dury[8], rudy[8], udry[8], urdy[8], cydr[7], wyru[7], dyry[7], wydr[6],
cud[7], cru[6], dur[6], rud[6], urd[6], dwu[6], rwy[4], wyr[4],
ud[5], wu[4], wy[3],