C121212231313232233131323223313231323131111132313231323132312121   >>    C12121223131323223313132322331323132313111113231323132313231212   <<    C121212231313232233131323223313231323131111132313231323132312123   >>      C121212231313232233131323223313231323131111132313231323132312122   >>