Input (grade 10): Eastward the boulevard crosses the Spree river at Berlin Cathedral and continues as Karl-Liebknecht-Stra Ã e/O. The western continuation behind Brandenburg Gate is StraÃ e des 17.
Output (grade 9): Eastward the boulevard crosses the river Spree near the Dom (Berlin Cathedral) and continues as Karl-Liebknecht-Stra Ã e/O. The western continuation behind Brandenburg Gate is StraÃ e des 17.