C1111133313331323223313331333133313331323131211111311331323221311   >>    C111113331333132322331333133313331333132313121111131133132322131   <<    C1111133313331323223313331333133313331323131211111311331323221313   >>      C1111133313331323223313331333133313331323131211111311331323221312   >>