D2122132313112331311221123133313232213331313331323221123313232233112113121   >>    D212213231311233131122112313331323221333131333132322112331323223311211312   <<    D2122132313112331311221123133313232213331313331323221123313232233112113123   >>      D2122132313112331311221123133313232213331313331323221123313232233112113122   >>