12.15

include

include

using namespace std;

int main() {
int A, B;
cin >> A >> B;

if (B == 0) {
    cout << A << "/" << B << "=Error" << endl;
} else {
    double result;
    if (B > 0) {
        result = static_cast<double>(A) / B;
        cout << A << "/" << B << "=" << fixed << setprecision(2) << result << endl;
    } else {
        result = static_cast<double>(A) / B;
        cout << A << "/(" << B << ")=" << fixed << setprecision(2) << result << endl;
    }
}

return 0;

}