C111123313331323113313331333133313121111133112121111331323133112231   >>    C11112331333132311331333133313331312111113311212111133132313311223   <<    C111123313331323113313331333133313121111133112121111331323133112233   >>      C111123313331323113313331333133313121111133112121111331323133112232   >>