C12321113113313223313132313231323331323331313231313331323133313233313232121   >>    C1232111311331322331313231323132333132333131323131333132313331323331323212   <<    C12321113113313223313132313231323331323331313231313331323133313233313232123   >>      C12321113113313223313132313231323331323331313231313331323133313233313232122   >>