club[10], bums[8], ducs[7], slum[7], muds[6], muss[6], sums[6], suds[4],
bum[7], duc[6], ulm[6], mud[5], bus[5], mus[5], ums[5], lud[4], lus[4], sud[3], uds[3],
um[4], ul[3], du[2], ud[2],
