#6#7求助

#include <iostream>
using namespace std;

int main()
{
    string a;
    cin >> a;
    getline(cin, a);
    int r = 0;
    int l = 0;
    for(int i = 0; i < a.size(); i++)
    {
        if(a[i] == '(')l++;
        else if(a[i] == ')')r++;
        if(r > l)
        {
            cout << "NO";
            return 0;
        }
        
    }
    if(r == l)cout << "YES" << endl;
    else cout << "NO" << endl;
    return 0;
}