C111123313331323113313331323133313331323331311221123231323323111   >>    C11112331333132311331333132313331333132333131122112323132332311   <<    C111123313331323113313331323133313331323331311221123231323323113   >>      C111123313331323113313331323133313331323331311221123231323323112   >>