#include<bits/stdc++.h>
#include<windows.h>
using namespace std;
char a;
stack<int> q;
int w=1;
int main()
{
	while(cin>>a)
	{
		if(a=='(')	q.push(w);
		if(a==')')
		{
			if(q.empty())
			{
				cout<<"NO";
				return 0;
			}
			q.pop();
		}
	}
	if(!q.empty())	cout<<"NO";
	else    cout<<"YES";
    return 0;
}