C111123313331323113313331333133313331323132333133313331312111111111   >>    C11112331333132311331333133313331333132313233313331333131211111111   <<    C111123313331323113313331333133313331323132333133313331312111111113   >>      C111123313331323113313331333133313331323132333133313331312111111112   >>