webCode/Luogu/P3056/P3056.cpp

#include <iostream>
#include <string>
using namespace std;

string s;
int n;
int ans;

int main(){
    cin>>s;
    for (int i=0; i<s.length(); i++) {
        if (s[i]=='(') {
            n++;
        }
        if (s[i]==')') {
            if (n==0) {
                ans++;
            }
            n--;
        }
    }
    cout<<ans-n<<" "<<ans<<" "<<n<<endl;
}