문제
풀이
#include <iomanip>
#include <iostream>
using namespace std;
void solve(void) {
double d, f, p; cin >> d >> f >> p;
cout << fixed << setprecision(2) << "$" << d * f * p << "\n";
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t; cin >> t;
while (t--) solve();
return 0;
}