C111123313331323113313331333133313121111133112121111331311331323132221   >>    C11112331333132311331333133313331312111113311212111133131133132313222   <<    C111123313331323113313331333133313121111133112121111331311331323132223   >>      C111123313331323113313331333133313121111133112121111331311331323132222   >>