C131312213233313231313231323232132313231313232233132333132333133313223111   >>    C13131221323331323131323132323213231323131323223313233313233313331322311   <<    C131312213233313231313231323232132313231313232233132333132333133313223113   >>      C131312213233313231313231323232132313231313232233132333132333133313223112   >>