#include <iostream>
#include <math.h>
#include <fstream>
 
using namespace std;
 
int main()
{
 
        int test;
        cin >> test;
        while(test--)
        {
                int len;
                cin >> len;
                float wdt = (float)(len * 60)/100.00;
                float rad = (float)(len * 20)/100.00;
 
                float red = (float)(acos(-1) * rad * rad);
                float grn = (float)(len * wdt);
 
                printf("%.2f %.2f\n", red, grn - red );
        }
        return 0;
}
 

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16
10
1
11
13
100
33
10
20
30
40
50
60
70
80
97
1000