C131312213233313231313231323232132313231313232233132333131323132322121111   >>    C13131221323331323131323132323213231323131323223313233313132313232212111   <<    C131312213233313231313231323232132313231313232233132333131323132322121113   >>      C131312213233313231313231323232132313231313232233132333131323132322121112   >>