C121212231313232233131323223313231323132313331323131331123231111   >>    C12121223131323223313132322331323132313231333132313133112323111   <<    C121212231313232233131323223313231323132313331323131331123231113   >>      C121212231313232233131323223313231323132313331323131331123231112   >>