/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		int n = 8;
 
		String del;
		String del2 = "";
 
		for (int i = 1; i <= n; i++) {
		    System.out.print(del2 + "(");
		    del = "";
		    for (int j = 1; j <= i; j++) {
		        System.out.print(del + j);
		        del = " + ";
		    }
		    System.out.print(")");
		    del2 = " + ";
 
		}
	}
}

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