...

#include<iostream>
#include<queue>
using namespace std;
queue<char> q;
int main(){
string a;
cin >> a;
int al = a.size();
for(int i = 0;i < al;i++){
if(a[i] == '(') q.push(a[i]);
if(a[i] == ')' && q.size() == 0){
cout << "NO";
return 0;
}
if(a[i] == ')') q.pop();

}
if(q.size() == 0) cout << "YES";
else cout << "NO";
return 0;

}