C121212231313232233131323223313231323132313331323131333132313221   >>    C12121223131323223313132322331323132313231333132313133313231322   <<    C121212231313232233131323223313231323132313331323131333132313223   >>      C121212231313232233131323223313231323132313331323131333132313222   >>