#include <bits/stdc++.h>
using namespace std;
string s;
int main()
{
	stack <long long> taylorswift;
	cin>>s;
	int l=s.length();
	for (int i=0;i<l;i++)
	{
		if (s[i]=='(') taylorswift.push(1989);
		else if (s[i]==')') taylorswift.pop();
	}
	if (taylorswift.empty()) cout<<"YES";
	else cout<<"NO";
	return 0;
}