C111123313331323113313331323133313331311331311331333133112111111332332321   >>    C11112331333132311331333132313331333131133131133133313311211111133233232   <<    C111123313331323113313331323133313331311331311331333133112111111332332323   >>      C111123313331323113313331323133313331311331311331333133112111111332332322   >>