slum[7], drum[6], muds[6], rums[6], duld[5], drud[4],
ulm[6], mud[5], mur[5], rum[5], mus[5], ums[5], lud[4], lus[4], dur[3], sud[3], uds[3], rus[3], sur[3], urs[3],
um[4], ul[3], du[2], ud[2], ur[2],
