#include <bits/stdc++.h>

using namespace std;

int main() {
    //输入+输出重定向
    //freopen("../x.in", "r", stdin);
    //freopen("../x.out", "w", stdout);

    string s;
    getline(cin, s);
    stack<char> st;
    for (int i = 0; i < s.size(); ++i) {
        if (s[i] == '(') st.push('(');
        if (s[i] == ')') st.pop();
    }

    if (st.empty()) cout << "YES" << endl;
    else cout << "NO" << endl;
    //关闭文件
    //fclose(stdin);
    //fclose(stdout);
    return 0;
}