C111123313331323113313331331121111331323132322333121111133313113313113321   >>    C11112331333132311331333133112111133132313232233312111113331311331311332   <<    C111123313331323113313331331121111331323132322333121111133313113313113323   >>      C111123313331323113313331331121111331323132322333121111133313113313113322   >>