Grandpa Stavri

#include <iostream>
#include <iomanip>

using namespace std;

int main() {
    int days;
    cin >> days;

    double currentLiters, currentGradus, averageGradus = 0, totalLiters = 0;

    for (int i = 0; i < days; i++) {
        cin >> currentLiters >> currentGradus;
        averageGradus += currentLiters * currentGradus;
        totalLiters += currentLiters;
    }

    averageGradus /= totalLiters;

    cout << fixed << setprecision(2)
        << "Liter: " << totalLiters << endl
        << "Degrees: " << averageGradus << endl;

    if (averageGradus < 38) {
        cout << "Not good, you should baking!\n";
    }
    else if (averageGradus > 42) {
        cout << "Dilution with distilled water!\n";
    }
    else {
        cout << "Super!\n";
    }

    return 0;
}