#include <iostream>
#include <vector>
#include <cmath>

int main() {
    size_t n;
    std::cin >> n;
    std::vector<long double> A(n), B(n), C(n);
    for (size_t i = 0; i < n; ++i) {
        std::cin >> A[i];
    }
    for (size_t i = 0; i < n; ++i) {
        std::cin >> B[i];
    }
    for (size_t i = 0; i < n; ++i) {
        std::cin >> C[i];
    }
    std::vector<long double> P(n), D(n);
    for (size_t i = 0; i < n; ++i) {
        P[i] = A[i] + B[i] + C[i];
        D[i] = std::sqrt(P[i] / 2 * (P[i] / 2 - A[i]) * (P[i] / 2 - B[i]) * (P[i] / 2 - C[i]));
    }
    std::cout << "P: ";
    for (size_t i = 0; i < n; ++i) {
        std::cout << P[i] << " ";
    }
    std::cout << std::endl;
    std::cout << "D: ";
    for (size_t i = 0; i < n; ++i) {
        std::cout << D[i] << " ";
    }
    std::cout << std::endl;
    return 0;
}