pomb[8], brom[7], romb[7], prom[6],
bol[6], lob[6], bom[6], mob[6], mol[5], mop[5], bor[5], rob[5], lor[4], rol[4], mor[4], por[4], pro[4], rop[4],
bo[4], om[3], op[3], po[3], or[2], ro[2],
