04. Vegetable Market

#include <iostream>

using namespace std;

int main() {
    double vegetablePrice, fruitPrice, vegetableQuantity, fruitQuantity;
    cin >> vegetablePrice >> fruitPrice >> vegetableQuantity >> fruitQuantity;
    double totalPrice = (vegetablePrice * vegetableQuantity + fruitPrice * fruitQuantity) / 1.94;

    cout.setf(ios::fixed);
    cout.precision(2);

    cout << totalPrice << endl;

    return 0;
}