C1212122313132322331323323132313232233131333132313231323133313223221   >>    C121212231313232233132332313231323223313133313231323132313331322322   <<    C1212122313132322331323323132313232233131333132313231323133313223223   >>      C1212122313132322331323323132313232233131333132313231323133313223222   >>