:D
Russian is one of the hardest languages to learn right after Chinese and Japanese.
Don't harass me if I'm wrong, I don't know exactly.
Russian is probably right up there next to them, but Chinese has a rediculous amount of characters which are really just characters mixed with other characters. Japanese borrows Kanji, the wierd looking symbols that are complicated, from Chinese. Russian is probably around there, but not the hardest. Russian has funky grammar, though.