C111123313121111121111331333133313331333131233133313332231133211   >>    C11112331312111112111133133313331333133313123313331333223113321   <<    C111123313121111121111331333133313331333131233133313332231133213   >>      C111123313121111121111331333133313331333131233133313332231133212   >>