mbiry[9], rybim[9],
biby[9], bimy[8], mbir[7], bryi[7], rybi[7], miry[6],
bib[7], bym[7], bim[6], bry[6], ryb[6], rym[5], mir[4],
by[5], bi[4], my[4], im[3], mi[3],
