bum[8], umb[8], pub[8], umm[7], pum[7], bym[7], bim[6], piu[6], mym[6], mim[5], piw[4], iwy[4],
bu[6], mu[5], by[5], bi[4], wu[4], my[4], im[3], mi[3], pi[3], wy[3], iw[2],
