C111123313121111121111331333133313331323231333133313331311233131221221   >>    C11112331312111112111133133313331333132323133313331333131123313122122   <<    C111123313121111121111331333133313331323231333133313331311233131221223   >>      C111123313121111121111331333133313331323231333133313331311233131221222   >>