ducs[7], slum[7], mund[6], muds[6], duld[5], lund[5], sund[4],
duc[6], ulm[6], mud[5], mus[5], ums[5], lud[4], lus[4], dun[3], und[3], sud[3], uds[3], uns[3],
um[4], ul[3], du[2], ud[2], nu[2],