April 12 (Reuters) - Russia on Wednesday imposed sanctions on 333 Canadian officials and public figures, including prominent Olympians, in what it said was a tit-for-tat response to Canadian restrictions on Moscow and support for Ukraine. The list, published by Russia's foreign ministry on Wednesday, includes Canada's Governor General Mary Simon, more than 250 members of regional legislative assemblies, and scores of Canadian athletes who have publicly supported a ban on Russian athletes competing at the 2024 Olympics. The list, published by Russia's foreign ministry on Wednesday, includes Canada's Governor General Mary Simon, more than 250 members of regional legislative assemblies, and scores of Canadian athletes who have publicly supported a ban on Russian athletes competing at the 2024 Olympics