// 2019 IUSB Programming Competition
// Round 1 Problem 4
// Find out if the open and closed parentheses in a string are properly matching
// Solution by Liguo Yu


import java.util.Scanner;

public class round1_p4
{
	public static void main(String[] main)
	{
		boolean balanced = true;
		Scanner scan = new Scanner(System.in);
		
		String string = scan.nextLine();
		
		int x = 0;
		
		for (int i = 0; i < string.length(); i++)
		{
			if (string.charAt(i) == '(') x++;
			else if (string.charAt(i) == ')') x--;
			
			if (x < 0) balanced = false;
		}
		
		if (x != 0) balanced = false;
		
		if(balanced == true) System.out.println("yes");
		else System.out.println("no");
		
		return;
	}
}