bol[6], lob[6], bot[6], bor[5], rob[5], lot[5], pot[5], top[5], lor[4], rol[4], por[4], pro[4], rop[4], ort[4], rot[4], tor[4], rwo[3],
bo[4], op[3], po[3], ot[3], to[3], or[2], ro[2],