D2122132313112331311221123133313232213331313331323221123313233313231231221   >>    D212213231311233131122112313331323221333131333132322112331323331323123122   <<    D2122132313112331311221123133313232213331313331323221123313233313231231223   >>      D2122132313112331311221123133313232213331313331323221123313233313231231222   >>