mums[8], summ[8], most[7], sumo[7], umso[7], must[6], muts[6], outs[5],
mum[7], mus[5], ums[5], mut[5], ost[4], tos[4], sou[4], uso[4], out[4],
um[4], os[3], so[3], st[2], tu[2],
