C111123313331323113313331333133313331323132333131133131323222321   >>    C11112331333132311331333133313331333132313233313113313132322232   <<    C111123313331323113313331333133313331323132333131133131323222323   >>      C111123313331323113313331333133313331323132333131133131323222322   >>