fibr[10], firm[9], mbir[7], birr[6], mirt[6], mitr[6], mirr[5],
fit[8], bib[7], bij[7], frr[7], bim[6], bit[6], brr[5], mit[5], mir[4], itr[4], tir[4], tri[4],
fi[6], bi[4], im[3], mi[3],
