C111123313331323113313331333133313331323132333133313311232313331312331111   >>    C11112331333132311331333133313331333132313233313331331123231333131233111   <<    C111123313331323113313331333133313331323132333133313311232313331312331113   >>      C111123313331323113313331333133313331323132333133313311232313331312331112   >>