C111123313331323113313331331121111331323132322333121111133313211   >>    C11112331333132311331333133112111133132313232233312111113331321   <<    C111123313331323113313331331121111331323132322333121111133313213   >>      C111123313331323113313331331121111331323132322333121111133313212   >>