Problems
Brackets (2)
Brackets (2)
Print all correct bracket expressions of length \textbf{n}, consisting of round and square brackets.
\InputFile
One even integer \textbf{n} (\textbf{1} ≤\textit{ }\textbf{n}\textit{ }≤ \textbf{14}).
\OutputFile
Print each expression on a separate line.
Input example #1
4
Output example #1
()() ()[] (()) ([]) []() [][] [()] [[]]