C111123313121111121111331333133313331323231333133313113313133313231321   >>    C11112331312111112111133133313331333132323133313331311331313331323132   <<    C111123313121111121111331333133313331323231333133313113313133313231323   >>      C111123313121111121111331333133313331323231333133313113313133313231322   >>