C112311232313132313231313231323223313233313232213132313231322331   >>    C11231123231313231323131323132322331323331323221313231323132233   <<    C112311232313132313231313231323223313233313232213132313231322333   >>      C112311232313132313231313231323223313233313232213132313231322332   >>