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Luka Sulic (C-R) and Stjepan Hauser (C-L), members of Croatian cellist duo "2CELLOS", perform during their concert in Zagreb, capital of Croatia, on March 23, 2018. (Xinhua/Davor Puklavec)
Luka Sulic (C-R) and Stjepan Hauser (C-L), members of Croatian cellist duo "2CELLOS", perform during their concert in Zagreb, capital of Croatia, on March 23, 2018. (Xinhua/Davor Puklavec)