C111122332133313231232313231313231323132322331323133311221123232223131   >>    C11112233213331323123231323131323132313232233132313331122112323222313   <<    C111122332133313231232313231313231323132322331323133311221123232223133   >>      C111122332133313231232313231313231323132322331323133311221123232223132   >>