 Complete the following phrase:  Dzmitry Rabchanka born 24 December 1985 is a Belarusian sprint canoeist who has been competing since 2005. He won seven medals at the ICF Canoe Sprint World Championships with four golds C-4 200 m: 2009, C-4 500 m: 2006, C-4 1000 m: 2009, 