C111123313121111121111331333133313331323232133113313231333131133132311211   >>    C11112331312111112111133133313331333132323213311331323133313113313231121   <<    C111123313121111121111331333133313331323232133113313231333131133132311213   >>      C111123313121111121111331333133313331323232133113313231333131133132311212   >>