#include <iostream>
#include <stack>
#include <string>
using namespace std;
string s;
stack<char> Stack;
int main()
{
	cin>>s;
	for (int i=0;i<s.size();i++)
	{
		if (s[i]=='(')
			Stack.push('(');
		else if (s[i]==')')
		{
			if (Stack.top()=='(')
				Stack.pop();
			else
				Stack.push(')');
		}
	}
	if (Stack.empty())
		printf("YES");
	else
		printf("NO");
		
}