C111123313331323113313331333133313331323132333133313331333132333131232321   >>    C11112331333132311331333133313331333132313233313331333133313233313123232   <<    C111123313331323113313331333133313331323132333133313331333132333131232323   >>      C111123313331323113313331333133313331323132333133313331333132333131232322   >>