#include <iostream>
#include <iomanip> // Need for formatting decimals
using namespace std;
int main() {
    float length, width;
    
    // Read input dimensions
    if (cin >> length >> width) {
        float areas = length * width;
        
        // Display area rounded to two decimal places
        cout << fixed << setprecision(2) << area << endl;
    }
     
    return 0;
}