C111123313121111121111331333133313331321123121133132313331333132212322131   >>    C11112331312111112111133133313331333132112312113313231333133313221232213   <<    C111123313121111121111331333133313331321123121133132313331333132212322133   >>      C111123313121111121111331333133313331321123121133132313331333132212322132   >>