bimy[8], bomy[8], obym[8], bimo[7], biom[7], boom[7], obom[7], oboi[6], oiom[5],
bym[7], bim[6], bom[6], mob[6], boy[6], oby[6], boi[5], obi[5], omy[5], moi[4], omo[4],
by[5], bi[4], bo[4], my[4], im[3], mi[3], om[3], ii[2],
