C1212122313132322331313232233132313231323133313231311331312312321   >>    C121212231313232233131323223313231323132313331323131133131231232   <<    C1212122313132322331313232233132313231323133313231311331312312323   >>      C1212122313132322331313232233132313231323133313231311331312312322   >>