C12321113113313223313132313231323331323331313231313331323133313233312121   >>    C1232111311331322331313231323132333132333131323131333132313331323331212   <<    C12321113113313223313132313231323331323331313231313331323133313233312123   >>      C12321113113313223313132313231323331323331313231313331323133313233312122   >>