śrub[12], proś[9], boru[8], buro[8], poru[7],
buś[11], pub[8], obu[7], bru[7], bur[7], roś[7], opu[6], bor[5], rob[5], oru[5], por[4], pro[4], rop[4],
bu[6], oś[6], bo[4], op[3], po[3], or[2], ro[2],
