C1111223321333132312323132313132313231323223313231311233132211111   >>    C111122332133313231232313231313231323132322331323131123313221111   <<    C1111223321333132312323132313132313231323223313231311233132211113   >>      C1111223321333132312323132313132313231323223313231311233132211112   >>