()

/*
    (()())() OK
    (()()))( ne ok
*/

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

int main()
{
    const int N = 100000;
    char S[N];
    cin.getline(S, N);

    int kolo = 0, kolz = 0;
    bool ok = true;

    for (int i = 0; S[i]; i++)
    {
        if(S[i] == '(')
        {
            kolo++;
        }
        else if(S[i] == ')')
        {

            kolz++;
            if (kolz > kolo)
            {
                ok = false;
                break;
            }
        }
    }

    cout << kolo << endl;
    cout << kolz << endl;

    if (ok && kolo == kolz)
    {
        cout << "OK";
    }
    else
    {
        cout << "BAD";
    }

}