C31211133313132313231323331313132313231313232233132333132321112121   >>    C3121113331313231323132333131313231323131323223313233313232111212   <<    C31211133313132313231323331313132313231313232233132333132321112123   >>      C31211133313132313231323331313132313231313232233132333132321112122   >>