D2122132313112331311221123133313232213331313331323221123313221211   >>    D212213231311233131122112313331323221333131333132322112331322121   <<    D2122132313112331311221123133313232213331313331323221123313221213   >>      D2122132313112331311221123133313232213331313331323221123313221212   >>