C111122332133313231232313231313231323132322331323131123313132312111   >>    C11112233213331323123231323131323132313232233132313112331313231211   <<    C111122332133313231232313231313231323132322331323131123313132312113   >>      C111122332133313231232313231313231323132322331323131123313132312112   >>