C111123313331323113313331331121111331323132322333121111121123311   >>    C11112331333132311331333133112111133132313232233312111112112331   <<    C111123313331323113313331331121111331323132322333121111121123313   >>      C111123313331323113313331331121111331323132322333121111121123312   >>