C1111133313331323223313331333133313311211111211331333131231323221311   >>    C111113331333132322331333133313331331121111121133133313123132322131   <<    C1111133313331323223313331333133313311211111211331333131231323221313   >>      C1111133313331323223313331333133313311211111211331333131231323221312   >>