C131312213233313231313231323232132313231313232233132333131323223321   >>    C13131221323331323131323132323213231323131323223313233313132322332   <<    C131312213233313231313231323232132313231313232233132333131323223323   >>      C131312213233313231313231323232132313231313232233132333131323223322   >>