C131312213233313231313231323232132313231313232233132333132322331313311211   >>    C13131221323331323131323132323213231323131323223313233313232233131331121   <<    C131312213233313231313231323232132313231313232233132333132322331313311213   >>      C131312213233313231313231323232132313231313232233132333132322331313311212   >>