Qρν x:xcNu δ:δ~Nu ρPbQbRbSbT xObObObPbO δSbObRbPbO ρUbVbWbXbv xPb|b|b|bQ δSb|b|b|b12 ₯obe[ x:¬qAδ|δA¬q δ:ΌΐA΄{|Ξδ {:Όΐiδj O:Ξδiδj ρ:Όΐiδj |