import java.io.*;
import java.util.*;


class GFG {
	public static void main (String[] args) {
		ArrayList<String> ans=combParenthesis(4);

		for(String s:ans) System.out.println(s);
	}

	public static ArrayList<String> combParenthesis(int pairs) {
	    ArrayList<String> l = new ArrayList<>();

	    if(pairs<=0) return l;

	    genPair(pairs,pairs,"",l);
	    return l;
    }

    public static void genPair(int n, int m, String s,ArrayList<String> l)
    {
        if(n==0 && m==0) l.add(s);

        if(n>m) return;

        if(n>0) genPair(n-1,m, s+"(", l);

        if(m>0) genPair(n,m-1,s+")",l);
    }

}