D2122132313112331311221123133313232213331313331323221123313232211321   >>    D212213231311233131122112313331323221333131333132322112331323221132   <<    D2122132313112331311221123133313232213331313331323221123313232211323   >>      D2122132313112331311221123133313232213331313331323221123313232211322   >>