OI-codes/Luogu/P2433/P2433.cpp

#include <bits/stdc++.h>

using namespace std;

int main() {
    int T;
    cin >> T;
    if (T == 1) {
        cout << "I love Luogu!";
    } else if (T == 2) {
        cout << 2 + 4 << " " << 10 - 2 - 4;
    } else if (T == 3) {
        cout << 3 << endl
             << 12 << endl
             << 2 << endl;
    } else if (T == 4) {
        printf("%.3lf\n", 500.0 / 3.0);
    } else if (T == 5) {
        cout << 15 << endl;
    } else if (T == 6) {
        cout << sqrt(6 * 6 + 9 * 9) << endl;
    } else if (T == 7) {
        cout << 110 << endl
             << 90 << endl
             << 0 << endl;
    } else if (T == 8) {
        cout << 3.141593 * 5 * 2 << endl
             << 3.141593 * 5 * 5 << endl
             << 4.0 / 3 * 3.141593 * 5 * 5 * 5 << endl;
    } else if (T == 9) {
        cout << 22 << endl;
    } else if (T == 10) {
        cout << 9 << endl;
    } else if (T == 11) {
        cout << 100.0 / (8 - 5) << endl;
    } else if (T == 12) {
        cout << 13 << endl
             << "R" << endl;
    } else if (T == 13) {
        cout << floor(pow((3.141593 * 4 * 4 * 4 * 4 / 3 + 3.141593 * 10 * 10 * 10 * 4 / 3), 1.0 / 3)) << endl;
    } else if (T == 14) {
        cout << 50 << endl;
    }
    return 0;
}