For Sergei Duzhikov and Maria Tyabut, a middle-class couple living in a town just outside Moscow, Western sanctions on Russia over the conflict in Ukraine have been manageable.

The pair drive a Chinese car, vacation in Venezuela and buy "Camembert" cheese made in Russia.

Their modest two-bedroom apartment in Mytishchi, home to 300,000 people northeast of the capital, has been recently renovated and their Chinese-made fridge is stocked with Russian goods.