D121211111122233132233131333131121323132313331323221321123123231   >>    D12121111112223313223313133313112132313231333132322132112312323   <<    D121211111122233132233131333131121323132313331323221321123123233   >>      D121211111122233132233131333131121323132313331323221321123123232   >>