D2122132313112331311221123133313232213331313331323221123313231333132311311221   >>    D212213231311233131122112313331323221333131333132322112331323133313231131122   <<    D2122132313112331311221123133313232213331313331323221123313231333132311311223   >>      D2122132313112331311221123133313232213331313331323221123313231333132311311222   >>