Вильчинский - Лабораторная работа #1

I see, but writing one line instead of 2 (or 3) would be the fastest way, wouldn't it? However, my main suggestion was in keeping simplicity of test. Also, what if you want to test "String" deque? Write one more function? If you disagree, that test with one line initialization would be simpler, I'll rewrite it to compare. Also you can use `List` (`ArrayList`) instead of raw array (it would help to remove `i`).