#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;
int main() {
int n, r, sum = 0;
double S;
cin >> n >> r;
int *x = new int[n];
for (int i = 0; i < n; i++) cin >> x[i];
for (int i = 0; i < n; i++) sum += x[i];
S = M_PI * r * r;
for (int i = 0; i < n; i++) cout << fixed << setprecision(9) << (S / sum) * x[i] << endl;
return 0;
}
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