C111123313121111121111331333132313331323112121111331333133311221123232233311   >>    C11112331312111112111133133313231333132311212111133133313331122112323223331   <<    C111123313121111121111331333132313331323112121111331333133311221123232233313   >>      C111123313121111121111331333132313331323112121111331333133311221123232233312   >>