C111123313121111121111331333133313331333112221211111133132322231333132313221231   >>    C11112331312111112111133133313331333133311222121111113313232223133313231322123   <<    C111123313121111121111331333133313331333112221211111133132322231333132313221233   >>      C111123313121111121111331333133313331333112221211111133132322231333132313221232   >>