C111123313331323113313331333133313331323132333133313331311221123221311331   >>    C11112331333132311331333133313331333132313233313331333131122112322131133   <<    C111123313331323113313331333133313331323132333133313331311221123221311333   >>      C111123313331323113313331333133313331323132333133313331311221123221311332   >>