C111122332133313231232313231313231323132322331323133311211312311   >>    C11112233213331323123231323131323132313232233132313331121131231   <<    C111122332133313231232313231313231323132322331323133311211312313   >>      C111122332133313231232313231313231323132322331323133311211312312   >>